./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.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/GopanReps-CAV2006-Fig1a.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 0455ba49274114922cfe1b7739d9cb0a89e6c868 ......................................................................................................................................................................................................................................................................................................................................................................................... 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 01:23:37,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:37,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:37,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:37,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:37,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:37,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:37,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:37,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:37,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:37,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:37,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:37,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:37,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:37,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:37,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:37,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:37,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:37,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:37,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:37,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:37,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:37,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:37,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:37,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:37,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:37,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:37,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:37,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:37,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:37,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:37,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:37,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:37,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:37,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:37,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:37,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:37,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:37,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:37,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:37,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:37,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:37,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:37,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:37,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:37,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:37,541 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:37,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:37,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:37,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:37,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:37,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:37,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:37,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:37,543 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:37,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:37,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:37,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:37,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:37,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:37,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:37,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:37,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:37,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:37,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:37,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:37,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:37,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:37,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:37,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:37,546 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 -> 0455ba49274114922cfe1b7739d9cb0a89e6c868 [2020-07-29 01:23:37,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:37,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:37,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:37,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:37,885 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:37,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2020-07-29 01:23:37,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc41920b/e1ce761572e747948f33960916eb32cc/FLAGae640b263 [2020-07-29 01:23:38,375 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:38,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2020-07-29 01:23:38,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc41920b/e1ce761572e747948f33960916eb32cc/FLAGae640b263 [2020-07-29 01:23:38,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc41920b/e1ce761572e747948f33960916eb32cc [2020-07-29 01:23:38,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:38,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:38,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:38,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:38,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:38,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:38,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f648f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38, skipping insertion in model container [2020-07-29 01:23:38,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:38,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:38,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:38,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:38,940 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:38,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:38,972 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:38,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38 WrapperNode [2020-07-29 01:23:38,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:38,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:38,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:38,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:38,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:38,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:39,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:39,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:39,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:39,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (1/1) ... [2020-07-29 01:23:39,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:39,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:39,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:39,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:39,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (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 01:23:39,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:39,443 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:39,443 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:39,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:39 BoogieIcfgContainer [2020-07-29 01:23:39,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:39,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:39,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:39,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:39,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:38" (1/3) ... [2020-07-29 01:23:39,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70724f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:39, skipping insertion in model container [2020-07-29 01:23:39,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:38" (2/3) ... [2020-07-29 01:23:39,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70724f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:39, skipping insertion in model container [2020-07-29 01:23:39,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:39" (3/3) ... [2020-07-29 01:23:39,457 INFO L109 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2020-07-29 01:23:39,469 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:39,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-07-29 01:23:39,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-07-29 01:23:39,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:39,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:39,568 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:39,569 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:39,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:39,569 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:39,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:39,569 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-29 01:23:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:23:39,602 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:39,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:23:39,604 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_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 01:23:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:39,611 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-07-29 01:23:39,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:39,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732599002] [2020-07-29 01:23:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:39,863 INFO L280 TraceCheckUtils]: 0: Hoare triple {22#true} havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; {24#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:39,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {24#(<= ULTIMATE.start_main_~x~0 0)} assume !!(main_~y~0 >= 0); {24#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:39,867 INFO L280 TraceCheckUtils]: 2: Hoare triple {24#(<= ULTIMATE.start_main_~x~0 0)} assume !(main_~x~0 <= 50); {23#false} is VALID [2020-07-29 01:23:39,868 INFO L280 TraceCheckUtils]: 3: Hoare triple {23#false} assume !(main_~y~0 - 1 <= 2147483647); {23#false} is VALID [2020-07-29 01:23:39,871 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 01:23:39,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732599002] [2020-07-29 01:23:39,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:39,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:23:39,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516725015] [2020-07-29 01:23:39,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:39,883 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:39,887 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:39,899 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 01:23:39,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:39,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:39,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:39,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:39,912 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-07-29 01:23:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,037 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-07-29 01:23:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:40,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2020-07-29 01:23:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2020-07-29 01:23:40,051 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 57 transitions. [2020-07-29 01:23:40,151 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:40,163 INFO L225 Difference]: With dead ends: 49 [2020-07-29 01:23:40,163 INFO L226 Difference]: Without dead ends: 23 [2020-07-29 01:23:40,167 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 01:23:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-29 01:23:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-07-29 01:23:40,204 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:40,205 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 20 states. [2020-07-29 01:23:40,205 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 20 states. [2020-07-29 01:23:40,206 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 20 states. [2020-07-29 01:23:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,209 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-07-29 01:23:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-07-29 01:23:40,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:40,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:40,211 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 23 states. [2020-07-29 01:23:40,211 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 23 states. [2020-07-29 01:23:40,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,214 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-07-29 01:23:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-07-29 01:23:40,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:40,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:40,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:40,216 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-29 01:23:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-07-29 01:23:40,220 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2020-07-29 01:23:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:40,220 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-07-29 01:23:40,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-07-29 01:23:40,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:23:40,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:40,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:23:40,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:40,222 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_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 01:23:40,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:40,223 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-07-29 01:23:40,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:40,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214367014] [2020-07-29 01:23:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:40,252 INFO L280 TraceCheckUtils]: 0: Hoare triple {150#true} havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; {152#(<= ULTIMATE.start_main_~y~0 0)} is VALID [2020-07-29 01:23:40,253 INFO L280 TraceCheckUtils]: 1: Hoare triple {152#(<= ULTIMATE.start_main_~y~0 0)} assume !!(main_~y~0 >= 0); {152#(<= ULTIMATE.start_main_~y~0 0)} is VALID [2020-07-29 01:23:40,254 INFO L280 TraceCheckUtils]: 2: Hoare triple {152#(<= ULTIMATE.start_main_~y~0 0)} assume main_~x~0 <= 50; {152#(<= ULTIMATE.start_main_~y~0 0)} is VALID [2020-07-29 01:23:40,256 INFO L280 TraceCheckUtils]: 3: Hoare triple {152#(<= ULTIMATE.start_main_~y~0 0)} assume !(1 + main_~y~0 <= 2147483647); {151#false} is VALID [2020-07-29 01:23:40,256 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 01:23:40,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214367014] [2020-07-29 01:23:40,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:40,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:23:40,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925323855] [2020-07-29 01:23:40,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:40,259 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:40,260 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:40,268 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 01:23:40,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:40,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:40,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:40,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:40,269 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2020-07-29 01:23:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,329 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-07-29 01:23:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:40,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:23:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:23:40,332 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 22 transitions. [2020-07-29 01:23:40,366 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 01:23:40,367 INFO L225 Difference]: With dead ends: 21 [2020-07-29 01:23:40,367 INFO L226 Difference]: Without dead ends: 20 [2020-07-29 01:23:40,368 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 01:23:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-29 01:23:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-29 01:23:40,377 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:40,377 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2020-07-29 01:23:40,377 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-29 01:23:40,377 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-29 01:23:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,380 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-29 01:23:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-29 01:23:40,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:40,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:40,381 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2020-07-29 01:23:40,381 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2020-07-29 01:23:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:40,383 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-29 01:23:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-29 01:23:40,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:40,384 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:40,384 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:40,385 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-29 01:23:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-07-29 01:23:40,386 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2020-07-29 01:23:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:40,387 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-07-29 01:23:40,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-29 01:23:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:23:40,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:40,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:23:40,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:23:40,389 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_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 01:23:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-07-29 01:23:40,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:40,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409621377] [2020-07-29 01:23:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:40,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:23:40,398 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 01:23:40,405 INFO L168 Benchmark]: Toolchain (without parser) took 1661.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -94.2 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:40,406 INFO L168 Benchmark]: CDTParser took 0.27 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 01:23:40,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.11 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:40,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.22 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:40,409 INFO L168 Benchmark]: Boogie Preprocessor took 77.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:40,410 INFO L168 Benchmark]: RCFGBuilder took 356.50 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:40,411 INFO L168 Benchmark]: TraceAbstraction took 953.53 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: 59.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:40,415 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 0.27 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 228.11 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 39.22 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 356.50 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 953.53 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: 59.3 MB). Peak memory consumption was 59.3 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...