./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/cstrspn.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/cstrspn.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 0c74f0cc26425c1a044a70e86941b5dd82b132ff ............................................................................................................................................................................................................................................................................................................................................................................................ 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 01:23:57,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:57,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:57,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:57,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:57,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:57,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:57,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:57,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:57,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:57,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:57,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:57,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:57,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:57,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:57,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:57,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:57,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:57,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:57,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:57,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:57,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:57,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:57,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:57,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:57,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:57,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:57,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:57,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:57,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:57,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:57,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:57,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:57,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:57,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:57,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:57,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:57,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:57,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:57,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:57,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:57,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:57,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:57,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:57,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:57,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:57,830 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:57,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:57,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:57,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:57,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:57,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:57,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:57,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:57,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:57,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:57,834 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:57,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:57,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:57,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:57,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:57,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:57,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:57,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:57,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:57,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:57,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:57,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:57,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:57,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:57,839 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 -> 0c74f0cc26425c1a044a70e86941b5dd82b132ff [2020-07-29 01:23:58,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:58,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:58,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:58,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:58,210 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:58,211 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2020-07-29 01:23:58,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb1740eb/8a2949ac494f4ca692566a9fc14a58bb/FLAG122ff4fcb [2020-07-29 01:23:58,678 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:58,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2020-07-29 01:23:58,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb1740eb/8a2949ac494f4ca692566a9fc14a58bb/FLAG122ff4fcb [2020-07-29 01:23:59,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb1740eb/8a2949ac494f4ca692566a9fc14a58bb [2020-07-29 01:23:59,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:59,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:59,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:59,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:59,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:59,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727498c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59, skipping insertion in model container [2020-07-29 01:23:59,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:59,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:59,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:59,312 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:59,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:59,351 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:59,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59 WrapperNode [2020-07-29 01:23:59,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:59,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:59,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:59,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:59,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:59,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:59,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:59,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:59,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (1/1) ... [2020-07-29 01:23:59,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:59,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:59,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:59,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:59,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (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 01:23:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:23:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-29 01:23:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:24:00,290 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:24:00,291 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-29 01:24:00,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:00 BoogieIcfgContainer [2020-07-29 01:24:00,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:24:00,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:24:00,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:24:00,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:24:00,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:59" (1/3) ... [2020-07-29 01:24:00,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736ef5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:00, skipping insertion in model container [2020-07-29 01:24:00,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:59" (2/3) ... [2020-07-29 01:24:00,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736ef5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:00, skipping insertion in model container [2020-07-29 01:24:00,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:00" (3/3) ... [2020-07-29 01:24:00,303 INFO L109 eAbstractionObserver]: Analyzing ICFG cstrspn.c [2020-07-29 01:24:00,313 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:24:00,321 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-29 01:24:00,334 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-29 01:24:00,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:24:00,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:24:00,357 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:24:00,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:24:00,358 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:24:00,358 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:24:00,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:24:00,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:24:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-07-29 01:24:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:24:00,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:00,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:24:00,383 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:00,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:00,390 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-07-29 01:24:00,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:00,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563656392] [2020-07-29 01:24:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:00,567 INFO L280 TraceCheckUtils]: 0: Hoare triple {38#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {38#true} is VALID [2020-07-29 01:24:00,568 INFO L280 TraceCheckUtils]: 1: Hoare triple {38#true} havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;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; {38#true} is VALID [2020-07-29 01:24:00,571 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#true} assume build_nondet_String_~length~0 < 1;build_nondet_String_~length~0 := 1; {40#(<= ULTIMATE.start_build_nondet_String_~length~0 1)} is VALID [2020-07-29 01:24:00,572 INFO L280 TraceCheckUtils]: 3: Hoare triple {40#(<= ULTIMATE.start_build_nondet_String_~length~0 1)} assume !(build_nondet_String_~length~0 <= 2147483647); {39#false} is VALID [2020-07-29 01:24:00,575 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 01:24:00,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563656392] [2020-07-29 01:24:00,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:24:00,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:24:00,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871914175] [2020-07-29 01:24:00,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:00,585 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:24:00,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:24:00,606 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 01:24:00,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:24:00,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:24:00,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:24:00,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:24:00,619 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-07-29 01:24:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:00,900 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2020-07-29 01:24:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:24:00,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:00,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:24:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2020-07-29 01:24:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2020-07-29 01:24:00,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 96 transitions. [2020-07-29 01:24:01,086 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:01,099 INFO L225 Difference]: With dead ends: 75 [2020-07-29 01:24:01,099 INFO L226 Difference]: Without dead ends: 30 [2020-07-29 01:24:01,104 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 01:24:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-29 01:24:01,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-07-29 01:24:01,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:01,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 27 states. [2020-07-29 01:24:01,144 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 27 states. [2020-07-29 01:24:01,144 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 27 states. [2020-07-29 01:24:01,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:01,149 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-07-29 01:24:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-29 01:24:01,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:01,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:01,150 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 30 states. [2020-07-29 01:24:01,151 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 30 states. [2020-07-29 01:24:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:01,154 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-07-29 01:24:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-29 01:24:01,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:01,156 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:01,156 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:01,156 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-29 01:24:01,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-07-29 01:24:01,161 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2020-07-29 01:24:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:01,162 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-07-29 01:24:01,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:24:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-07-29 01:24:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:24:01,163 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:01,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:24:01,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:24:01,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:01,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:01,165 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-07-29 01:24:01,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:01,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214999719] [2020-07-29 01:24:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:01,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {222#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {222#true} is VALID [2020-07-29 01:24:01,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {222#true} havoc main_#res;havoc main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11.base, main_#t~ret11.offset, main_#t~ret12;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; {224#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} is VALID [2020-07-29 01:24:01,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {224#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} assume !(build_nondet_String_~length~0 < 1); {224#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} is VALID [2020-07-29 01:24:01,202 INFO L280 TraceCheckUtils]: 3: Hoare triple {224#(<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)} assume !(build_nondet_String_~length~0 <= 2147483647); {223#false} is VALID [2020-07-29 01:24:01,203 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 01:24:01,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214999719] [2020-07-29 01:24:01,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:24:01,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:24:01,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96715324] [2020-07-29 01:24:01,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:01,207 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:24:01,207 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:24:01,215 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 01:24:01,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:24:01,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:24:01,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:24:01,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:24:01,217 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2020-07-29 01:24:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:01,284 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-07-29 01:24:01,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:24:01,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:24:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:24:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:24:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:24:01,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-07-29 01:24:01,288 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 22 transitions. [2020-07-29 01:24:01,318 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 01:24:01,319 INFO L225 Difference]: With dead ends: 27 [2020-07-29 01:24:01,319 INFO L226 Difference]: Without dead ends: 23 [2020-07-29 01:24:01,321 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 01:24:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-29 01:24:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2020-07-29 01:24:01,325 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:01,326 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 17 states. [2020-07-29 01:24:01,326 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 17 states. [2020-07-29 01:24:01,326 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 17 states. [2020-07-29 01:24:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:01,329 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-07-29 01:24:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-07-29 01:24:01,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:01,330 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:01,331 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 23 states. [2020-07-29 01:24:01,331 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 23 states. [2020-07-29 01:24:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:01,334 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-07-29 01:24:01,334 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-07-29 01:24:01,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:01,335 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:01,335 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:01,336 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-29 01:24:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-07-29 01:24:01,338 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2020-07-29 01:24:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:01,338 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-07-29 01:24:01,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:24:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-29 01:24:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:24:01,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:01,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:24:01,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:24:01,341 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:01,342 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-07-29 01:24:01,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:01,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168576821] [2020-07-29 01:24:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:01,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:24:01,353 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 01:24:01,361 INFO L168 Benchmark]: Toolchain (without parser) took 2259.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -61.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:01,361 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:24:01,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.79 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 01:24:01,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:01,364 INFO L168 Benchmark]: Boogie Preprocessor took 35.22 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 01:24:01,365 INFO L168 Benchmark]: RCFGBuilder took 773.59 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:01,366 INFO L168 Benchmark]: TraceAbstraction took 1062.01 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: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:01,370 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 0.58 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 248.79 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 132.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.22 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 773.59 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1062.01 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: 79.3 MB). Peak memory consumption was 79.3 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...