./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/condmf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/array-fpi/condmf.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c5d8bd66f1102b00780234ee620f69cce916c4d ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:33:25,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:33:25,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:33:25,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:33:25,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:33:25,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:33:25,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:33:25,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:33:25,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:33:25,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:33:25,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:33:25,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:33:25,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:33:25,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:33:25,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:33:25,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:33:25,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:33:25,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:33:25,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:33:25,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:33:25,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:33:25,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:33:25,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:33:25,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:33:25,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:33:25,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:33:25,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:33:25,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:33:25,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:33:25,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:33:25,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:33:25,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:33:25,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:33:25,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:33:25,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:33:25,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:33:25,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:33:25,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:33:25,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:33:25,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:33:25,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:33:25,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:33:25,759 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:33:25,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:33:25,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:33:25,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:33:25,761 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:33:25,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:33:25,761 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:33:25,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:33:25,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:33:25,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:33:25,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:33:25,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:33:25,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:33:25,765 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:33:25,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:33:25,766 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:33:25,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:33:25,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:33:25,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:33:25,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:33:25,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:33:25,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:33:25,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:33:25,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:33:25,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:33:25,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:33:25,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:33:25,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:33:25,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:33:25,770 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c5d8bd66f1102b00780234ee620f69cce916c4d [2019-11-28 15:33:26,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:33:26,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:33:26,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:33:26,177 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:33:26,177 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:33:26,179 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/condmf.c [2019-11-28 15:33:26,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ceb6afbe/21703fd042ba4892ae5117c1daf8aac8/FLAG92aa828e4 [2019-11-28 15:33:26,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:33:26,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/condmf.c [2019-11-28 15:33:26,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ceb6afbe/21703fd042ba4892ae5117c1daf8aac8/FLAG92aa828e4 [2019-11-28 15:33:27,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ceb6afbe/21703fd042ba4892ae5117c1daf8aac8 [2019-11-28 15:33:27,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:33:27,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:33:27,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:33:27,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:33:27,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:33:27,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1ee429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27, skipping insertion in model container [2019-11-28 15:33:27,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:33:27,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:33:27,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:33:27,306 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:33:27,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:33:27,344 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:33:27,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27 WrapperNode [2019-11-28 15:33:27,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:33:27,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:33:27,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:33:27,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:33:27,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:33:27,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:33:27,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:33:27,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:33:27,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (1/1) ... [2019-11-28 15:33:27,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:33:27,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:33:27,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:33:27,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:33:27,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (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 [2019-11-28 15:33:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:33:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:33:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:33:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:33:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:33:27,837 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:33:27,837 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 15:33:27,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:27 BoogieIcfgContainer [2019-11-28 15:33:27,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:33:27,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:33:27,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:33:27,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:33:27,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:33:27" (1/3) ... [2019-11-28 15:33:27,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c98cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:27, skipping insertion in model container [2019-11-28 15:33:27,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:27" (2/3) ... [2019-11-28 15:33:27,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c98cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:27, skipping insertion in model container [2019-11-28 15:33:27,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:27" (3/3) ... [2019-11-28 15:33:27,861 INFO L109 eAbstractionObserver]: Analyzing ICFG condmf.c [2019-11-28 15:33:27,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:33:27,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:33:27,896 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:33:27,921 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:33:27,922 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:33:27,922 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:33:27,922 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:33:27,922 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:33:27,922 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:33:27,922 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:33:27,923 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:33:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-28 15:33:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 15:33:27,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:33:27,942 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:33:27,942 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:33:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:33:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1481876406, now seen corresponding path program 1 times [2019-11-28 15:33:27,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:33:27,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84887346] [2019-11-28 15:33:27,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:33:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:33:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:33:28,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84887346] [2019-11-28 15:33:28,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:33:28,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:33:28,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447712665] [2019-11-28 15:33:28,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:33:28,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:33:28,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:33:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:33:28,122 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-28 15:33:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:33:28,138 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-28 15:33:28,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:33:28,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-28 15:33:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:33:28,149 INFO L225 Difference]: With dead ends: 35 [2019-11-28 15:33:28,150 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 15:33:28,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:33:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 15:33:28,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-28 15:33:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 15:33:28,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-28 15:33:28,194 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-11-28 15:33:28,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:33:28,194 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-28 15:33:28,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:33:28,195 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-28 15:33:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 15:33:28,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:33:28,198 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:33:28,199 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:33:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:33:28,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1772877369, now seen corresponding path program 1 times [2019-11-28 15:33:28,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:33:28,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580058020] [2019-11-28 15:33:28,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:33:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:33:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:33:28,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580058020] [2019-11-28 15:33:28,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:33:28,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:33:28,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753136828] [2019-11-28 15:33:28,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:33:28,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:33:28,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:33:28,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:33:28,339 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-28 15:33:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:33:28,445 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-28 15:33:28,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:33:28,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 15:33:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:33:28,447 INFO L225 Difference]: With dead ends: 29 [2019-11-28 15:33:28,448 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 15:33:28,450 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:33:28,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 15:33:28,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-28 15:33:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 15:33:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-28 15:33:28,456 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2019-11-28 15:33:28,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:33:28,457 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-28 15:33:28,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:33:28,457 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-28 15:33:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 15:33:28,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:33:28,458 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:33:28,458 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:33:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:33:28,459 INFO L82 PathProgramCache]: Analyzing trace with hash 828058391, now seen corresponding path program 1 times [2019-11-28 15:33:28,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:33:28,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961034875] [2019-11-28 15:33:28,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:33:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:33:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 15:33:28,522 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961034875] [2019-11-28 15:33:28,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:33:28,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:33:28,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354635518] [2019-11-28 15:33:28,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:33:28,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:33:28,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:33:28,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:33:28,527 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-28 15:33:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:33:28,588 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-11-28 15:33:28,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:33:28,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 15:33:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:33:28,590 INFO L225 Difference]: With dead ends: 34 [2019-11-28 15:33:28,590 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 15:33:28,590 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:33:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 15:33:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2019-11-28 15:33:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 15:33:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-28 15:33:28,596 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-11-28 15:33:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:33:28,596 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-28 15:33:28,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:33:28,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-28 15:33:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 15:33:28,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:33:28,597 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:33:28,598 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:33:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:33:28,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1290117262, now seen corresponding path program 1 times [2019-11-28 15:33:28,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:33:28,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807460365] [2019-11-28 15:33:28,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:33:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:33:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:33:28,748 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:33:28,748 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:33:28,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:33:28 BoogieIcfgContainer [2019-11-28 15:33:28,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:33:28,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:33:28,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:33:28,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:33:28,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:27" (3/4) ... [2019-11-28 15:33:28,781 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:33:28,835 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:33:28,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:33:28,838 INFO L168 Benchmark]: Toolchain (without parser) took 1758.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 955.0 MB in the beginning and 997.5 MB in the end (delta: -42.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,838 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:33:28,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.46 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,841 INFO L168 Benchmark]: Boogie Preprocessor took 44.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,841 INFO L168 Benchmark]: RCFGBuilder took 343.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,842 INFO L168 Benchmark]: TraceAbstraction took 932.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 997.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:33:28,842 INFO L168 Benchmark]: Witness Printer took 57.09 ms. Allocated memory is still 1.1 GB. Free memory is still 997.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:33:28,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.46 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 103.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 932.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 997.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.09 ms. Allocated memory is still 1.1 GB. Free memory is still 997.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] int *a = malloc(sizeof(int)*N); [L25] i = 0 VAL [N=1] [L25] COND TRUE i < N [L27] a[i] = 0 VAL [N=1] [L25] i++ VAL [N=1] [L25] COND FALSE !(i < N) VAL [N=1] [L30] i = 0 VAL [N=1] [L30] COND TRUE i < N VAL [N=1] [L32] COND TRUE N%2 == 1 [L34] EXPR a[i] [L34] a[i] = a[i] + 2 [L30] i++ VAL [N=1] [L30] COND FALSE !(i < N) VAL [N=1] [L42] i = 0 VAL [N=1] [L42] COND TRUE i < N [L44] a[i] [L10] COND TRUE !(cond) VAL [N=1] [L10] __VERIFIER_error() VAL [N=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 31 SDslu, 8 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...