./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab 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/ldv-regression/alt_test.i -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 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ......................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-27 23:52:52,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:52:52,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:52:52,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:52:52,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:52:52,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:52:52,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:52:52,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:52:52,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:52:52,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:52:52,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:52:52,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:52:52,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:52:52,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:52:52,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:52:52,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:52:52,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:52:52,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:52:52,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:52:52,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:52:52,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:52:52,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:52:52,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:52:52,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:52:52,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:52:52,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:52:52,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:52:52,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:52:52,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:52:52,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:52:52,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:52:52,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:52:52,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:52:52,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:52:52,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:52:52,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:52:52,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:52:52,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:52:52,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:52:52,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:52:52,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:52:52,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:52:52,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:52:52,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:52:52,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:52:52,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:52:52,599 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:52:52,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:52:52,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:52:52,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:52:52,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:52:52,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:52:52,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:52:52,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:52:52,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:52:52,602 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:52:52,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:52:52,602 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:52:52,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:52:52,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:52:52,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:52:52,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:52:52,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:52:52,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:52:52,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:52:52,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:52:52,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:52:52,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:52:52,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:52:52,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:52:52,606 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 -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-11-27 23:52:52,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:52:52,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:52:52,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:52:52,955 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:52:52,956 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:52:52,957 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/alt_test.i [2019-11-27 23:52:53,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ed56331/9c10453e38ae4ddea51a9d732f113558/FLAGdaadcc736 [2019-11-27 23:52:53,630 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:52:53,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/alt_test.i [2019-11-27 23:52:53,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ed56331/9c10453e38ae4ddea51a9d732f113558/FLAGdaadcc736 [2019-11-27 23:52:53,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ed56331/9c10453e38ae4ddea51a9d732f113558 [2019-11-27 23:52:53,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:52:53,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:52:53,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:53,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:52:53,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:52:53,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:53" (1/1) ... [2019-11-27 23:52:53,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388be10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:53, skipping insertion in model container [2019-11-27 23:52:53,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:53" (1/1) ... [2019-11-27 23:52:53,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:52:53,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:52:54,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:54,416 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:52:54,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:54,629 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:52:54,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54 WrapperNode [2019-11-27 23:52:54,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:54,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:54,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:52:54,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:52:54,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:54,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:52:54,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:52:54,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:52:54,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (1/1) ... [2019-11-27 23:52:54,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:52:54,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:52:54,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:52:54,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:52:54,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (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 [2019-11-27 23:52:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:52:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 23:52:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:52:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:52:55,105 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:52:55,105 INFO L297 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-27 23:52:55,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:55 BoogieIcfgContainer [2019-11-27 23:52:55,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:52:55,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:52:55,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:52:55,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:52:55,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:52:53" (1/3) ... [2019-11-27 23:52:55,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a018305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:55, skipping insertion in model container [2019-11-27 23:52:55,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:54" (2/3) ... [2019-11-27 23:52:55,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a018305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:55, skipping insertion in model container [2019-11-27 23:52:55,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:55" (3/3) ... [2019-11-27 23:52:55,123 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2019-11-27 23:52:55,146 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:52:55,154 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-27 23:52:55,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-27 23:52:55,197 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:52:55,197 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:52:55,198 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:52:55,198 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:52:55,198 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:52:55,198 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:52:55,199 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:52:55,199 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:52:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-27 23:52:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 23:52:55,222 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:55,224 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:55,224 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash 119352108, now seen corresponding path program 1 times [2019-11-27 23:52:55,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:55,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747805221] [2019-11-27 23:52:55,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:52:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:52:55,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747805221] [2019-11-27 23:52:55,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:52:55,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:52:55,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206193002] [2019-11-27 23:52:55,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:52:55,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:52:55,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:52:55,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:52:55,434 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-11-27 23:52:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:52:55,482 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-11-27 23:52:55,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:52:55,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-27 23:52:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:52:55,495 INFO L225 Difference]: With dead ends: 39 [2019-11-27 23:52:55,495 INFO L226 Difference]: Without dead ends: 20 [2019-11-27 23:52:55,500 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 [2019-11-27 23:52:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-27 23:52:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-27 23:52:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 23:52:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-11-27 23:52:55,529 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2019-11-27 23:52:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:52:55,530 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-11-27 23:52:55,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:52:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-11-27 23:52:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 23:52:55,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:55,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:55,531 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:55,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:55,532 INFO L82 PathProgramCache]: Analyzing trace with hash 176610410, now seen corresponding path program 1 times [2019-11-27 23:52:55,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:55,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102513845] [2019-11-27 23:52:55,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:52:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:52:55,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102513845] [2019-11-27 23:52:55,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:52:55,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:52:55,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687990168] [2019-11-27 23:52:55,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:52:55,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:52:55,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:52:55,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:52:55,591 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-11-27 23:52:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:52:55,606 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-27 23:52:55,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:52:55,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-27 23:52:55,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:52:55,608 INFO L225 Difference]: With dead ends: 25 [2019-11-27 23:52:55,608 INFO L226 Difference]: Without dead ends: 13 [2019-11-27 23:52:55,609 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 [2019-11-27 23:52:55,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-27 23:52:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-27 23:52:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-27 23:52:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-27 23:52:55,612 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-11-27 23:52:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:52:55,613 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-27 23:52:55,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:52:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-27 23:52:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:52:55,614 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:55,615 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:55,615 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash -262109109, now seen corresponding path program 1 times [2019-11-27 23:52:55,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:55,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483899280] [2019-11-27 23:52:55,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:52:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:52:55,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483899280] [2019-11-27 23:52:55,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:52:55,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-27 23:52:55,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946637444] [2019-11-27 23:52:55,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 23:52:55,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:52:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 23:52:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:52:55,698 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-11-27 23:52:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:52:55,748 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-27 23:52:55,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:52:55,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-27 23:52:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:52:55,750 INFO L225 Difference]: With dead ends: 19 [2019-11-27 23:52:55,750 INFO L226 Difference]: Without dead ends: 13 [2019-11-27 23:52:55,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-27 23:52:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-27 23:52:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-27 23:52:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-27 23:52:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2019-11-27 23:52:55,755 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2019-11-27 23:52:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:52:55,756 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2019-11-27 23:52:55,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 23:52:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-11-27 23:52:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:52:55,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:55,757 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:55,758 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:55,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1912419270, now seen corresponding path program 1 times [2019-11-27 23:52:55,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:55,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435230902] [2019-11-27 23:52:55,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:52:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:52:55,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:52:55,819 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:52:55,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:52:55 BoogieIcfgContainer [2019-11-27 23:52:55,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:52:55,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:52:55,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:52:55,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:52:55,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:55" (3/4) ... [2019-11-27 23:52:55,858 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:52:55,914 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:52:55,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:52:55,917 INFO L168 Benchmark]: Toolchain (without parser) took 2031.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -60.9 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:55,918 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:52:55,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:55,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.30 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. [2019-11-27 23:52:55,920 INFO L168 Benchmark]: Boogie Preprocessor took 51.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:55,921 INFO L168 Benchmark]: RCFGBuilder took 349.02 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:55,921 INFO L168 Benchmark]: TraceAbstraction took 745.08 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:55,922 INFO L168 Benchmark]: Witness Printer took 60.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:52:55,926 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 744.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.30 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. * Boogie Preprocessor took 51.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 349.02 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 745.08 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 60.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; VAL [globalState=0] [L1619] void *retVal = malloc(size); VAL [globalState=0] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [globalState=1] [L1622] return retVal; VAL [globalState=1] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=1] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=1] [L1630] globalState = 0 [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=0] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L1601] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 33 SDslu, 21 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...