./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Et2_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-numeric/Et2_true.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 9a16c2ef65c9470765f02a1675d8617e78fbed55 .............................................................................................................................................................................................................................. 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 0.1.25-906a4fb [2020-10-19 18:33:02,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:33:02,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:33:03,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:33:03,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:33:03,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:33:03,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:33:03,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:33:03,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:33:03,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:33:03,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:33:03,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:33:03,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:33:03,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:33:03,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:33:03,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:33:03,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:33:03,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:33:03,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:33:03,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:33:03,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:33:03,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:33:03,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:33:03,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:33:03,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:33:03,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:33:03,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:33:03,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:33:03,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:33:03,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:33:03,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:33:03,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:33:03,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:33:03,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:33:03,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:33:03,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:33:03,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:33:03,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:33:03,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:33:03,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:33:03,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:33:03,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:33:03,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:33:03,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:33:03,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:33:03,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:33:03,073 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:33:03,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:33:03,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:33:03,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:33:03,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:33:03,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:33:03,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:33:03,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:33:03,075 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:33:03,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:33:03,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:33:03,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:33:03,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:33:03,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:33:03,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:33:03,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:33:03,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:33:03,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:33:03,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:33:03,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:33:03,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:33:03,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:33:03,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:33:03,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:33:03,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 9a16c2ef65c9470765f02a1675d8617e78fbed55 [2020-10-19 18:33:03,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:33:03,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:33:03,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:33:03,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:33:03,408 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:33:03,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Et2_true.c [2020-10-19 18:33:03,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5ce5e45/5d8e5c6bf3ba443488eb35d2fb7bfe35/FLAG4f1356aa1 [2020-10-19 18:33:03,928 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:33:03,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Et2_true.c [2020-10-19 18:33:03,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5ce5e45/5d8e5c6bf3ba443488eb35d2fb7bfe35/FLAG4f1356aa1 [2020-10-19 18:33:04,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5ce5e45/5d8e5c6bf3ba443488eb35d2fb7bfe35 [2020-10-19 18:33:04,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:33:04,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:33:04,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:33:04,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:33:04,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:33:04,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46086f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04, skipping insertion in model container [2020-10-19 18:33:04,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:33:04,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:33:04,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:33:04,657 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:33:04,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:33:04,688 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:33:04,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04 WrapperNode [2020-10-19 18:33:04,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:33:04,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:33:04,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:33:04,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:33:04,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:33:04,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:33:04,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:33:04,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:33:04,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (1/1) ... [2020-10-19 18:33:04,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:33:04,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:33:04,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:33:04,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:33:04,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (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 [2020-10-19 18:33:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-10-19 18:33:04,866 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-10-19 18:33:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:33:04,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:33:05,096 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:33:05,097 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-19 18:33:05,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:05 BoogieIcfgContainer [2020-10-19 18:33:05,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:33:05,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:33:05,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:33:05,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:33:05,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:33:04" (1/3) ... [2020-10-19 18:33:05,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195323da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:33:05, skipping insertion in model container [2020-10-19 18:33:05,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:04" (2/3) ... [2020-10-19 18:33:05,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195323da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:33:05, skipping insertion in model container [2020-10-19 18:33:05,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:05" (3/3) ... [2020-10-19 18:33:05,107 INFO L111 eAbstractionObserver]: Analyzing ICFG Et2_true.c [2020-10-19 18:33:05,119 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:33:05,126 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-10-19 18:33:05,152 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-10-19 18:33:05,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:33:05,207 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:33:05,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:33:05,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:33:05,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:33:05,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:33:05,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:33:05,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:33:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-19 18:33:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-19 18:33:05,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:05,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-19 18:33:05,274 INFO L429 AbstractCegarLoop]: === Iteration 1 === [loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:05,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:05,288 INFO L82 PathProgramCache]: Analyzing trace with hash 66629, now seen corresponding path program 1 times [2020-10-19 18:33:05,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:05,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452768887] [2020-10-19 18:33:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:33:05,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:33:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:33:05,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:33:05,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:33:05,444 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:33:05,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:33:05,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:33:05 BoogieIcfgContainer [2020-10-19 18:33:05,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:33:05,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:33:05,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:33:05,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:33:05,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:05" (3/4) ... [2020-10-19 18:33:05,469 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:33:05,511 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:33:05,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:33:05,514 INFO L168 Benchmark]: Toolchain (without parser) took 1139.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,515 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:33:05,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,519 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,519 INFO L168 Benchmark]: RCFGBuilder took 300.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,520 INFO L168 Benchmark]: TraceAbstraction took 364.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:05,521 INFO L168 Benchmark]: Witness Printer took 46.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:33:05,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 300.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x = __VERIFIER_nondet_int(); [L24] int y = __VERIFIER_nondet_int(); [L25] int z = __VERIFIER_nondet_int(); [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE x < 0 [L33] -x - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...