./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-numeric/Et1_true_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-numeric/Et1_true_false-no-overflow.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 a85cb3758c5d85c22315af1db9b335f6cd7964ef .................................................................................................................................................................................................................................. 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 0.1.24-91b1670 [2018-11-28 23:09:00,111 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:09:00,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:09:00,128 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:09:00,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:09:00,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:09:00,133 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:09:00,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:09:00,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:09:00,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:09:00,145 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:09:00,145 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:09:00,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:09:00,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:09:00,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:09:00,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:09:00,161 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:09:00,165 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:09:00,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:09:00,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:09:00,173 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:09:00,177 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:09:00,183 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:09:00,184 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:09:00,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:09:00,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:09:00,187 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:09:00,187 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:09:00,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:09:00,192 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:09:00,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:09:00,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:09:00,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:09:00,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:09:00,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:09:00,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:09:00,201 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:09:00,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:09:00,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:09:00,223 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:09:00,223 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:09:00,224 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:09:00,224 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:09:00,224 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:09:00,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:09:00,225 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:09:00,225 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:09:00,225 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:09:00,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:09:00,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:09:00,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:09:00,226 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:09:00,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:09:00,226 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:09:00,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:09:00,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:09:00,227 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:09:00,227 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:09:00,227 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:09:00,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:09:00,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:09:00,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:09:00,228 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:09:00,228 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:09:00,228 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:09:00,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:09:00,228 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> a85cb3758c5d85c22315af1db9b335f6cd7964ef [2018-11-28 23:09:00,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:09:00,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:09:00,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:09:00,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:09:00,293 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:09:00,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-numeric/Et1_true_false-no-overflow.c [2018-11-28 23:09:00,359 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cefbdb24/01cdf14dee8a46519826beaf9f15df06/FLAG3f85780f4 [2018-11-28 23:09:00,838 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:09:00,839 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-numeric/Et1_true_false-no-overflow.c [2018-11-28 23:09:00,845 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cefbdb24/01cdf14dee8a46519826beaf9f15df06/FLAG3f85780f4 [2018-11-28 23:09:01,211 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cefbdb24/01cdf14dee8a46519826beaf9f15df06 [2018-11-28 23:09:01,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:09:01,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:09:01,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:09:01,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:09:01,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:09:01,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e3b42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01, skipping insertion in model container [2018-11-28 23:09:01,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:09:01,258 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:09:01,446 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:09:01,451 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:09:01,472 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:09:01,489 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:09:01,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01 WrapperNode [2018-11-28 23:09:01,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:09:01,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:09:01,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:09:01,491 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:09:01,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:09:01,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:09:01,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:09:01,519 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:09:01,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (1/1) ... [2018-11-28 23:09:01,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:09:01,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:09:01,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:09:01,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:09:01,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (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 [2018-11-28 23:09:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 23:09:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2018-11-28 23:09:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:09:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:09:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2018-11-28 23:09:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2018-11-28 23:09:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:09:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:09:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:09:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:09:02,162 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:09:02,163 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 23:09:02,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:09:02 BoogieIcfgContainer [2018-11-28 23:09:02,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:09:02,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:09:02,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:09:02,173 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:09:02,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:09:01" (1/3) ... [2018-11-28 23:09:02,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45063854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:09:02, skipping insertion in model container [2018-11-28 23:09:02,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:09:01" (2/3) ... [2018-11-28 23:09:02,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45063854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:09:02, skipping insertion in model container [2018-11-28 23:09:02,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:09:02" (3/3) ... [2018-11-28 23:09:02,179 INFO L112 eAbstractionObserver]: Analyzing ICFG Et1_true_false-no-overflow.c [2018-11-28 23:09:02,188 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:09:02,195 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-28 23:09:02,212 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-28 23:09:02,245 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:09:02,246 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:09:02,247 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:09:02,247 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:09:02,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:09:02,247 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:09:02,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:09:02,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:09:02,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:09:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-28 23:09:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:09:02,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:09:02,277 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:09:02,280 INFO L423 AbstractCegarLoop]: === Iteration 1 === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:09:02,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:09:02,286 INFO L82 PathProgramCache]: Analyzing trace with hash 301603856, now seen corresponding path program 1 times [2018-11-28 23:09:02,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:09:02,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:09:02,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:09:02,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:09:02,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:09:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:09:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:09:02,404 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:09:02,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:09:02 BoogieIcfgContainer [2018-11-28 23:09:02,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:09:02,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:09:02,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:09:02,432 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:09:02,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:09:02" (3/4) ... [2018-11-28 23:09:02,436 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:09:02,488 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:09:02,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:09:02,490 INFO L168 Benchmark]: Toolchain (without parser) took 1274.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:09:02,492 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:09:02,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.76 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:09:02,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.26 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:09:02,494 INFO L168 Benchmark]: Boogie Preprocessor took 32.96 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:09:02,495 INFO L168 Benchmark]: RCFGBuilder took 616.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:09:02,496 INFO L168 Benchmark]: TraceAbstraction took 262.99 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:09:02,499 INFO L168 Benchmark]: Witness Printer took 56.48 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. [2018-11-28 23:09:02,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.76 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 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 27.26 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.96 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 616.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 262.99 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.48 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: 31]: integer overflow possible integer overflow possible We found a FailurePath: [L21] int x = __VERIFIER_nondet_int(); [L22] int y = __VERIFIER_nondet_int(); [L23] int z = __VERIFIER_nondet_int(); [L24] CALL random() [L29] int x = __VERIFIER_nondet_int(); [L30] COND TRUE x < 0 VAL [x=-2147483648] [L31] -x VAL [x=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 10 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...