./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/cstrlen.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/cstrlen.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 1e3ef20869762bcfb9d8151d96b8065864cd760e ............................................................................................................................................................................................................................................................................................................................................................................................ 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 01:23:57,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:57,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:57,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:57,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:57,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:57,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:57,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:57,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:57,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:57,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:57,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:57,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:57,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:57,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:57,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:57,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:57,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:57,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:57,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:57,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:57,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:57,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:57,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:57,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:57,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:57,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:57,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:57,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:57,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:57,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:57,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:57,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:57,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:57,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:57,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:57,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:57,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:57,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:57,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:57,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:57,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:57,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:57,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:57,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:57,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:57,302 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:57,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:57,303 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:57,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:57,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:57,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:57,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:57,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:57,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:57,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:57,306 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:57,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:57,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:57,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:57,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:57,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:57,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:57,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:57,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:57,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:57,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:57,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:57,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:57,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:57,311 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 -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2020-07-29 01:23:57,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:57,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:57,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:57,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:57,689 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:57,691 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2020-07-29 01:23:57,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e512667b1/1c053af69f144aba8fbce36d8819cbc1/FLAG801cf8326 [2020-07-29 01:23:58,208 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:58,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2020-07-29 01:23:58,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e512667b1/1c053af69f144aba8fbce36d8819cbc1/FLAG801cf8326 [2020-07-29 01:23:58,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e512667b1/1c053af69f144aba8fbce36d8819cbc1 [2020-07-29 01:23:58,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:58,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:58,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:58,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:58,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:58,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:58,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15164b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58, skipping insertion in model container [2020-07-29 01:23:58,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:58,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:58,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:58,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:58,858 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:58,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:58,893 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:58,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58 WrapperNode [2020-07-29 01:23:58,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:58,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:58,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:58,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:58,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:58,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:58,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:58,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:58,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:58,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:59,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (1/1) ... [2020-07-29 01:23:59,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:59,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:59,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:59,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:59,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (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 01:23:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:23:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-29 01:23:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:23:59,497 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:59,497 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-29 01:23:59,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:59 BoogieIcfgContainer [2020-07-29 01:23:59,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:59,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:59,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:59,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:58" (1/3) ... [2020-07-29 01:23:59,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c039179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:59, skipping insertion in model container [2020-07-29 01:23:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:58" (2/3) ... [2020-07-29 01:23:59,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c039179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:59, skipping insertion in model container [2020-07-29 01:23:59,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:59" (3/3) ... [2020-07-29 01:23:59,509 INFO L109 eAbstractionObserver]: Analyzing ICFG cstrlen.c [2020-07-29 01:23:59,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:59,526 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-29 01:23:59,540 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-29 01:23:59,561 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:59,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:59,562 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:59,562 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:59,562 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:59,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:59,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:59,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-29 01:23:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:23:59,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:59,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:23:59,587 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:59,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:59,593 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-07-29 01:23:59,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:59,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87858520] [2020-07-29 01:23:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:59,774 INFO L280 TraceCheckUtils]: 0: Hoare triple {22#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {22#true} is VALID [2020-07-29 01:23:59,775 INFO L280 TraceCheckUtils]: 1: Hoare triple {22#true} havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;assume -2147483648 <= build_nondet_String_#t~nondet0 && build_nondet_String_#t~nondet0 <= 2147483647;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; {22#true} is VALID [2020-07-29 01:23:59,776 INFO L280 TraceCheckUtils]: 2: Hoare triple {22#true} assume build_nondet_String_~length~0 < 1;build_nondet_String_~length~0 := 1; {24#(<= ULTIMATE.start_build_nondet_String_~length~0 1)} is VALID [2020-07-29 01:23:59,778 INFO L280 TraceCheckUtils]: 3: Hoare triple {24#(<= ULTIMATE.start_build_nondet_String_~length~0 1)} assume !(build_nondet_String_~length~0 <= 2147483647); {23#false} is VALID [2020-07-29 01:23:59,781 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 01:23:59,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87858520] [2020-07-29 01:23:59,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:59,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:23:59,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021431265] [2020-07-29 01:23:59,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:59,794 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:59,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:59,812 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:59,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:59,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:59,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:59,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:59,828 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-07-29 01:23:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:59,966 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-07-29 01:23:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:59,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2020-07-29 01:23:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2020-07-29 01:23:59,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 42 transitions. [2020-07-29 01:24:00,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:00,068 INFO L225 Difference]: With dead ends: 38 [2020-07-29 01:24:00,068 INFO L226 Difference]: Without dead ends: 15 [2020-07-29 01:24:00,072 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 01:24:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-29 01:24:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-07-29 01:24:00,104 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:00,105 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2020-07-29 01:24:00,106 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2020-07-29 01:24:00,106 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2020-07-29 01:24:00,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,109 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-07-29 01:24:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-29 01:24:00,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:00,110 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:00,110 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2020-07-29 01:24:00,111 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2020-07-29 01:24:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,113 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-07-29 01:24:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-29 01:24:00,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:00,114 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:00,114 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:00,115 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-29 01:24:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-07-29 01:24:00,118 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2020-07-29 01:24:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:00,119 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-07-29 01:24:00,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:24:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-07-29 01:24:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:24:00,120 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:00,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:24:00,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:24:00,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-07-29 01:24:00,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:00,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808494862] [2020-07-29 01:24:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:00,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {119#true} is VALID [2020-07-29 01:24:00,157 INFO L280 TraceCheckUtils]: 1: Hoare triple {119#true} havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;assume -2147483648 <= build_nondet_String_#t~nondet0 && build_nondet_String_#t~nondet0 <= 2147483647;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; {121#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} is VALID [2020-07-29 01:24:00,158 INFO L280 TraceCheckUtils]: 2: Hoare triple {121#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} assume !(build_nondet_String_~length~0 < 1); {121#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} is VALID [2020-07-29 01:24:00,160 INFO L280 TraceCheckUtils]: 3: Hoare triple {121#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} assume !(build_nondet_String_~length~0 <= 2147483647); {120#false} is VALID [2020-07-29 01:24:00,160 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 01:24:00,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808494862] [2020-07-29 01:24:00,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:24:00,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:24:00,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851917644] [2020-07-29 01:24:00,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:00,164 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:24:00,164 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:24:00,172 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:00,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:24:00,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:24:00,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:24:00,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:24:00,174 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2020-07-29 01:24:00,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,207 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-07-29 01:24:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:24:00,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:24:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-29 01:24:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-29 01:24:00,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 11 transitions. [2020-07-29 01:24:00,229 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:00,230 INFO L225 Difference]: With dead ends: 14 [2020-07-29 01:24:00,230 INFO L226 Difference]: Without dead ends: 12 [2020-07-29 01:24:00,231 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 01:24:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-29 01:24:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2020-07-29 01:24:00,233 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:00,234 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 9 states. [2020-07-29 01:24:00,234 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 9 states. [2020-07-29 01:24:00,234 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 9 states. [2020-07-29 01:24:00,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,236 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-07-29 01:24:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-07-29 01:24:00,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:00,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:00,237 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 12 states. [2020-07-29 01:24:00,237 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 12 states. [2020-07-29 01:24:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,239 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-07-29 01:24:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-07-29 01:24:00,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:00,240 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:00,240 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:00,241 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-29 01:24:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-07-29 01:24:00,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2020-07-29 01:24:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:00,243 INFO L479 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-07-29 01:24:00,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:24:00,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-07-29 01:24:00,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:24:00,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:00,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:24:00,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:24:00,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:00,246 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-07-29 01:24:00,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:00,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174936863] [2020-07-29 01:24:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:00,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:24:00,258 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 01:24:00,266 INFO L168 Benchmark]: Toolchain (without parser) took 1671.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:00,267 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:24:00,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:00,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:00,269 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 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 01:24:00,270 INFO L168 Benchmark]: RCFGBuilder took 478.97 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:00,271 INFO L168 Benchmark]: TraceAbstraction took 760.01 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:00,276 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 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 98.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.50 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 478.97 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 760.01 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: 53.4 MB). Peak memory consumption was 53.4 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...