./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/gcd02.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- 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/recursive/gcd02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 4ba31a8852254650e4ff6b6614669c496c01110f .................................................................................................................................................................................................................................................... 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*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_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 01:24:21,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:24:21,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:24:21,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:24:21,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:24:21,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:24:21,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:24:21,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:24:21,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:24:21,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:24:21,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:24:21,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:24:21,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:24:21,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:24:21,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:24:21,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:24:21,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:24:21,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:24:21,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:24:21,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:24:21,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:24:21,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:24:21,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:24:21,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:24:21,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:24:21,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:24:21,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:24:21,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:24:21,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:24:21,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:24:21,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:24:21,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:24:21,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:24:21,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:24:21,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:24:21,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:24:21,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:24:21,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:24:21,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:24:21,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:24:21,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:24:21,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-07-29 01:24:21,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:24:21,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:24:21,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:24:21,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:24:21,366 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:24:21,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:24:21,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 01:24:21,367 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:24:21,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:24:21,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 01:24:21,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:24:21,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:24:21,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:24:21,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:24:21,369 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:24:21,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 01:24:21,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:24:21,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:24:21,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:24:21,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:24:21,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:24:21,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:24:21,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:24:21,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:24:21,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:24:21,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:24:21,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:24:21,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:24:21,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:24:21,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:24:21,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:24:21,374 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba31a8852254650e4ff6b6614669c496c01110f [2020-07-29 01:24:21,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:24:21,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:24:21,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:24:21,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:24:21,706 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:24:21,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd02.c [2020-07-29 01:24:21,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33f3825b/8942d2f13cbe40fe8122c7f3befbb26c/FLAG9f500a03c [2020-07-29 01:24:22,226 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:24:22,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c [2020-07-29 01:24:22,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33f3825b/8942d2f13cbe40fe8122c7f3befbb26c/FLAG9f500a03c [2020-07-29 01:24:22,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33f3825b/8942d2f13cbe40fe8122c7f3befbb26c [2020-07-29 01:24:22,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:24:22,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:24:22,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:22,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:24:22,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:24:22,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:22,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193a3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22, skipping insertion in model container [2020-07-29 01:24:22,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:22,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:24:22,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:24:22,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:22,905 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:24:22,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:22,942 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:24:22,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22 WrapperNode [2020-07-29 01:24:22,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:22,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:22,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:24:22,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:24:22,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:22,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:23,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:24:23,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:24:23,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:24:23,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (1/1) ... [2020-07-29 01:24:23,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:24:23,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:24:23,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:24:23,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:24:23,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (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 01:24:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure divides [2020-07-29 01:24:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure divides [2020-07-29 01:24:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2020-07-29 01:24:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2020-07-29 01:24:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:24:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:24:23,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:24:23,628 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 01:24:23,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:23 BoogieIcfgContainer [2020-07-29 01:24:23,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:24:23,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:24:23,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:24:23,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:24:23,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:24:22" (1/3) ... [2020-07-29 01:24:23,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee433f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:23, skipping insertion in model container [2020-07-29 01:24:23,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:22" (2/3) ... [2020-07-29 01:24:23,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee433f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:23, skipping insertion in model container [2020-07-29 01:24:23,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:23" (3/3) ... [2020-07-29 01:24:23,640 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd02.c [2020-07-29 01:24:23,652 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:24:23,659 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-07-29 01:24:23,679 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-07-29 01:24:23,701 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:24:23,701 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:24:23,701 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:24:23,702 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:24:23,702 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:24:23,702 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:24:23,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:24:23,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:24:23,721 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-29 01:24:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-29 01:24:23,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:23,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:24:23,728 INFO L427 AbstractCegarLoop]: === Iteration 1 === [dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:23,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:23,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1549577429, now seen corresponding path program 1 times [2020-07-29 01:24:23,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:23,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634091020] [2020-07-29 01:24:23,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:23,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:24:23,845 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 01:24:23,851 INFO L168 Benchmark]: Toolchain (without parser) took 1222.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,852 INFO L168 Benchmark]: CDTParser took 0.19 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 01:24:23,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,855 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,856 INFO L168 Benchmark]: RCFGBuilder took 565.47 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,856 INFO L168 Benchmark]: TraceAbstraction took 214.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:23,861 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 0.19 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 312.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 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 97.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.45 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 565.47 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 214.67 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: 6.7 MB). Peak memory consumption was 6.7 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...