./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Et4_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab 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/Et4_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 53536d1fdd6afdf5702d18ef21a8c05f68768569 .......................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 02:52:31,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:52:31,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:52:31,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:52:31,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:52:31,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:52:31,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:52:31,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:52:31,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:52:31,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:52:31,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:52:31,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:52:31,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:52:31,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:52:31,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:52:31,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:52:31,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:52:31,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:52:31,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:52:31,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:52:31,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:52:31,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:52:31,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:52:31,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:52:31,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:52:31,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:52:31,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:52:31,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:52:31,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:52:31,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:52:31,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:52:31,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:52:31,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:52:31,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:52:31,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:52:31,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:52:31,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:52:31,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:52:31,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:52:31,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:52:31,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:52:31,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:52:31,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:52:31,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:52:31,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:52:31,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:52:31,769 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:52:31,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:52:31,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:52:31,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:52:31,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:52:31,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:52:31,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:52:31,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:52:31,771 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:52:31,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:52:31,772 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:52:31,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:52:31,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:52:31,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:52:31,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:52:31,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:52:31,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:52:31,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:52:31,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:52:31,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:52:31,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:52:31,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:52:31,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:52:31,776 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 -> 53536d1fdd6afdf5702d18ef21a8c05f68768569 [2019-11-28 02:52:32,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:52:32,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:52:32,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:52:32,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:52:32,116 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:52:32,117 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Et4_true.c [2019-11-28 02:52:32,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b33649c4/d4e07459abb747d8a25625172b857e48/FLAGf06f76d9a [2019-11-28 02:52:32,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:52:32,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Et4_true.c [2019-11-28 02:52:32,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b33649c4/d4e07459abb747d8a25625172b857e48/FLAGf06f76d9a [2019-11-28 02:52:33,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b33649c4/d4e07459abb747d8a25625172b857e48 [2019-11-28 02:52:33,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:52:33,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:52:33,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:33,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:52:33,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:52:33,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26262e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33, skipping insertion in model container [2019-11-28 02:52:33,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:52:33,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:52:33,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:33,289 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:52:33,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:33,323 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:52:33,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33 WrapperNode [2019-11-28 02:52:33,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:33,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:33,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:52:33,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:52:33,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:33,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:52:33,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:52:33,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:52:33,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (1/1) ... [2019-11-28 02:52:33,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:52:33,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:52:33,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:52:33,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:52:33,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (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 [2019-11-28 02:52:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2019-11-28 02:52:33,503 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2019-11-28 02:52:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:52:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:52:33,762 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:52:33,763 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 02:52:33,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:33 BoogieIcfgContainer [2019-11-28 02:52:33,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:52:33,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:52:33,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:52:33,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:52:33,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:52:33" (1/3) ... [2019-11-28 02:52:33,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abef0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:33, skipping insertion in model container [2019-11-28 02:52:33,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:33" (2/3) ... [2019-11-28 02:52:33,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abef0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:33, skipping insertion in model container [2019-11-28 02:52:33,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:33" (3/3) ... [2019-11-28 02:52:33,776 INFO L109 eAbstractionObserver]: Analyzing ICFG Et4_true.c [2019-11-28 02:52:33,791 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:52:33,799 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-11-28 02:52:33,812 INFO L249 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-11-28 02:52:33,842 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:52:33,842 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:52:33,842 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:52:33,843 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:52:33,843 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:52:33,843 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:52:33,843 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:52:33,844 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:52:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-11-28 02:52:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 02:52:33,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:33,872 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 02:52:33,873 INFO L410 AbstractCegarLoop]: === Iteration 1 === [loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:33,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:33,880 INFO L82 PathProgramCache]: Analyzing trace with hash 62657, now seen corresponding path program 1 times [2019-11-28 02:52:33,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:33,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139781363] [2019-11-28 02:52:33,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:52:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:52:33,991 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:52:33,992 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:52:34,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:52:34 BoogieIcfgContainer [2019-11-28 02:52:34,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:52:34,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:52:34,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:52:34,012 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:52:34,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:33" (3/4) ... [2019-11-28 02:52:34,015 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:52:34,060 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:52:34,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:52:34,063 INFO L168 Benchmark]: Toolchain (without parser) took 1006.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:52:34,064 INFO L168 Benchmark]: CDTParser took 1.55 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:52:34,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.72 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:34,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:34,066 INFO L168 Benchmark]: Boogie Preprocessor took 20.10 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. [2019-11-28 02:52:34,067 INFO L168 Benchmark]: RCFGBuilder took 329.96 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:34,068 INFO L168 Benchmark]: TraceAbstraction took 245.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:34,068 INFO L168 Benchmark]: Witness Printer took 48.34 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. [2019-11-28 02:52:34,073 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.72 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 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 89.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.10 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 329.96 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 245.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.34 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: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 [L35] -x - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 14 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...