./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-crafted-lit/UrbanMine-ESOP2014-Fig3.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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: null --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:23:55,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:55,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:55,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:55,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:55,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:55,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:55,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:55,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:55,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:55,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:55,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:55,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:55,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:55,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:55,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:55,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:55,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:55,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:55,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:55,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:55,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:55,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:55,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:55,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:55,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:55,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:55,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:55,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:55,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:55,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:55,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:55,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:55,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:55,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:55,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:55,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:55,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:55,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:55,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:55,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:55,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:55,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:55,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:55,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:55,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:55,280 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:55,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:55,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:55,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:55,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:55,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:55,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:55,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:55,281 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:55,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:55,282 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:55,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:55,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:55,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:55,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:55,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:55,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:55,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:55,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:55,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:55,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:55,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:55,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:55,285 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 -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-07-29 01:23:55,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:55,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:55,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:55,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:55,624 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:55,625 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-07-29 01:23:55,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1324ec83/ecc6621fb95b45f2a605ece1047dcaa4/FLAG71299db93 [2020-07-29 01:23:56,111 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:56,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-07-29 01:23:56,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1324ec83/ecc6621fb95b45f2a605ece1047dcaa4/FLAG71299db93 [2020-07-29 01:23:56,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1324ec83/ecc6621fb95b45f2a605ece1047dcaa4 [2020-07-29 01:23:56,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:56,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:56,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:56,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:56,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:56,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11461533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56, skipping insertion in model container [2020-07-29 01:23:56,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:56,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:56,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:56,714 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:56,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:56,748 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:56,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56 WrapperNode [2020-07-29 01:23:56,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:56,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:56,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:56,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:56,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:56,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:56,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:56,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:56,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (1/1) ... [2020-07-29 01:23:56,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:56,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:56,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:56,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:56,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (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 [2020-07-29 01:23:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:57,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:57,322 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:57,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:57 BoogieIcfgContainer [2020-07-29 01:23:57,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:57,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:57,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:57,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:57,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:56" (1/3) ... [2020-07-29 01:23:57,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345f8688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:57, skipping insertion in model container [2020-07-29 01:23:57,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:56" (2/3) ... [2020-07-29 01:23:57,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345f8688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:57, skipping insertion in model container [2020-07-29 01:23:57,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:57" (3/3) ... [2020-07-29 01:23:57,338 INFO L109 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2020-07-29 01:23:57,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:57,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-29 01:23:57,397 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-29 01:23:57,451 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:57,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:57,452 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:57,452 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:57,452 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:57,452 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:57,452 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:57,453 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-29 01:23:57,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:23:57,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:57,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:23:57,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:57,488 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-07-29 01:23:57,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:57,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539573290] [2020-07-29 01:23:57,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:57,699 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; {30#(<= ULTIMATE.start_main_~x~0 2147483647)} is VALID [2020-07-29 01:23:57,700 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#(<= ULTIMATE.start_main_~x~0 2147483647)} assume !!(0 != main_~x~0 && main_~y~0 > 0); {30#(<= ULTIMATE.start_main_~x~0 2147483647)} is VALID [2020-07-29 01:23:57,701 INFO L280 TraceCheckUtils]: 2: Hoare triple {30#(<= ULTIMATE.start_main_~x~0 2147483647)} assume main_~x~0 > 0;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {30#(<= ULTIMATE.start_main_~x~0 2147483647)} is VALID [2020-07-29 01:23:57,702 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#(<= ULTIMATE.start_main_~x~0 2147483647)} assume 0 != main_#t~nondet2;havoc main_#t~nondet2; {30#(<= ULTIMATE.start_main_~x~0 2147483647)} is VALID [2020-07-29 01:23:57,704 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#(<= ULTIMATE.start_main_~x~0 2147483647)} assume !(main_~x~0 - 1 <= 2147483647); {29#false} is VALID [2020-07-29 01:23:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:23:57,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539573290] [2020-07-29 01:23:57,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:57,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:23:57,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337743984] [2020-07-29 01:23:57,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:57,716 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:57,719 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:57,736 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:57,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:57,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:57,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:57,749 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2020-07-29 01:23:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:57,876 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2020-07-29 01:23:57,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:57,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2020-07-29 01:23:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2020-07-29 01:23:57,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 50 transitions. [2020-07-29 01:23:57,970 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:57,982 INFO L225 Difference]: With dead ends: 43 [2020-07-29 01:23:57,983 INFO L226 Difference]: Without dead ends: 30 [2020-07-29 01:23:57,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-29 01:23:58,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-07-29 01:23:58,024 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:58,024 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 28 states. [2020-07-29 01:23:58,025 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 28 states. [2020-07-29 01:23:58,025 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 28 states. [2020-07-29 01:23:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,030 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2020-07-29 01:23:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-07-29 01:23:58,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,031 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 30 states. [2020-07-29 01:23:58,031 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 30 states. [2020-07-29 01:23:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,035 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2020-07-29 01:23:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-07-29 01:23:58,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,036 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:58,036 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-29 01:23:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-07-29 01:23:58,041 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2020-07-29 01:23:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:58,041 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-07-29 01:23:58,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-07-29 01:23:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:23:58,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:58,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:23:58,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:58,043 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:58,043 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-07-29 01:23:58,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:58,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139853986] [2020-07-29 01:23:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:58,079 INFO L280 TraceCheckUtils]: 0: Hoare triple {171#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; {173#(<= ULTIMATE.start_main_~y~0 2147483647)} is VALID [2020-07-29 01:23:58,080 INFO L280 TraceCheckUtils]: 1: Hoare triple {173#(<= ULTIMATE.start_main_~y~0 2147483647)} assume !!(0 != main_~x~0 && main_~y~0 > 0); {173#(<= ULTIMATE.start_main_~y~0 2147483647)} is VALID [2020-07-29 01:23:58,080 INFO L280 TraceCheckUtils]: 2: Hoare triple {173#(<= ULTIMATE.start_main_~y~0 2147483647)} assume main_~x~0 > 0;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647; {173#(<= ULTIMATE.start_main_~y~0 2147483647)} is VALID [2020-07-29 01:23:58,081 INFO L280 TraceCheckUtils]: 3: Hoare triple {173#(<= ULTIMATE.start_main_~y~0 2147483647)} assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; {173#(<= ULTIMATE.start_main_~y~0 2147483647)} is VALID [2020-07-29 01:23:58,082 INFO L280 TraceCheckUtils]: 4: Hoare triple {173#(<= ULTIMATE.start_main_~y~0 2147483647)} assume !(main_~y~0 - 1 <= 2147483647); {172#false} is VALID [2020-07-29 01:23:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:23:58,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139853986] [2020-07-29 01:23:58,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:58,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:23:58,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871602253] [2020-07-29 01:23:58,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:58,086 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:58,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:58,095 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:58,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:58,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:58,096 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2020-07-29 01:23:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,152 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-07-29 01:23:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:58,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-29 01:23:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-29 01:23:58,155 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 24 transitions. [2020-07-29 01:23:58,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:58,197 INFO L225 Difference]: With dead ends: 28 [2020-07-29 01:23:58,197 INFO L226 Difference]: Without dead ends: 26 [2020-07-29 01:23:58,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:58,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-29 01:23:58,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-29 01:23:58,207 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:58,207 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-29 01:23:58,207 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-29 01:23:58,208 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-29 01:23:58,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,210 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-07-29 01:23:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-07-29 01:23:58,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,211 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,212 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-29 01:23:58,212 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-29 01:23:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,215 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-07-29 01:23:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-07-29 01:23:58,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,216 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:58,216 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-29 01:23:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-07-29 01:23:58,219 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2020-07-29 01:23:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:58,219 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-07-29 01:23:58,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-07-29 01:23:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:23:58,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:58,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:23:58,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:23:58,221 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:58,222 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2020-07-29 01:23:58,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:58,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495146980] [2020-07-29 01:23:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:58,255 INFO L280 TraceCheckUtils]: 0: Hoare triple {286#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; {286#true} is VALID [2020-07-29 01:23:58,256 INFO L280 TraceCheckUtils]: 1: Hoare triple {286#true} assume !!(0 != main_~x~0 && main_~y~0 > 0); {286#true} is VALID [2020-07-29 01:23:58,257 INFO L280 TraceCheckUtils]: 2: Hoare triple {286#true} assume !(main_~x~0 > 0);assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; {288#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:58,258 INFO L280 TraceCheckUtils]: 3: Hoare triple {288#(<= ULTIMATE.start_main_~x~0 0)} assume 0 != main_#t~nondet4;havoc main_#t~nondet4; {288#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:58,260 INFO L280 TraceCheckUtils]: 4: Hoare triple {288#(<= ULTIMATE.start_main_~x~0 0)} assume !(1 + main_~x~0 <= 2147483647); {287#false} is VALID [2020-07-29 01:23:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:23:58,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495146980] [2020-07-29 01:23:58,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:58,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:23:58,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520896598] [2020-07-29 01:23:58,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:58,263 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:58,263 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:58,272 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:58,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:58,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:58,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:58,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:58,273 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 3 states. [2020-07-29 01:23:58,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,336 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-07-29 01:23:58,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:58,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-29 01:23:58,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:23:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:23:58,339 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 22 transitions. [2020-07-29 01:23:58,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:58,374 INFO L225 Difference]: With dead ends: 26 [2020-07-29 01:23:58,375 INFO L226 Difference]: Without dead ends: 25 [2020-07-29 01:23:58,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-29 01:23:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-29 01:23:58,385 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:58,385 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2020-07-29 01:23:58,385 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-29 01:23:58,385 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-29 01:23:58,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,388 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-07-29 01:23:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-07-29 01:23:58,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,389 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,389 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-29 01:23:58,389 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-29 01:23:58,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:58,392 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-07-29 01:23:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-07-29 01:23:58,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:58,393 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:58,393 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:58,393 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-29 01:23:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-07-29 01:23:58,395 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2020-07-29 01:23:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:58,396 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-07-29 01:23:58,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-07-29 01:23:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:23:58,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:58,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:23:58,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:23:58,398 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:58,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:58,398 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-07-29 01:23:58,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:58,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894282865] [2020-07-29 01:23:58,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:58,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-29 01:23:58,410 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-29 01:23:58,417 INFO L168 Benchmark]: Toolchain (without parser) took 1922.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -56.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:58,418 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:58,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 938.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:58,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:58,420 INFO L168 Benchmark]: Boogie Preprocessor took 45.37 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. [2020-07-29 01:23:58,421 INFO L168 Benchmark]: RCFGBuilder took 409.93 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:58,422 INFO L168 Benchmark]: TraceAbstraction took 1085.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:58,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 938.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 119.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.37 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. * RCFGBuilder took 409.93 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1085.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...