java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/nec11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:46:06,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:46:06,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:46:06,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:46:06,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:46:06,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:46:06,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:46:06,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:46:06,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:46:06,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:46:06,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:46:06,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:46:06,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:46:06,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:46:07,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:46:07,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:46:07,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:46:07,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:46:07,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:46:07,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:46:07,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:46:07,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:46:07,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:46:07,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:46:07,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:46:07,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:46:07,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:46:07,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:46:07,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:46:07,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:46:07,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:46:07,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:46:07,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:46:07,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:46:07,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:46:07,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:46:07,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:46:07,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:46:07,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:46:07,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:46:07,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:46:07,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 13:46:07,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:46:07,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:46:07,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:46:07,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:46:07,073 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:46:07,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:46:07,073 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:46:07,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:46:07,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:46:07,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:46:07,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:46:07,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:46:07,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:46:07,076 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:46:07,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:46:07,076 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:46:07,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:46:07,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:46:07,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:46:07,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:46:07,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:46:07,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:46:07,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:46:07,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:46:07,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:46:07,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:46:07,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:46:07,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:46:07,439 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:46:07,440 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec11.c [2019-10-07 13:46:07,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878f0ef76/8c57c5cdf9c74f21a7b553fe00f00ec2/FLAGd9dd1f1e2 [2019-10-07 13:46:07,940 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:46:07,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec11.c [2019-10-07 13:46:07,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878f0ef76/8c57c5cdf9c74f21a7b553fe00f00ec2/FLAGd9dd1f1e2 [2019-10-07 13:46:08,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878f0ef76/8c57c5cdf9c74f21a7b553fe00f00ec2 [2019-10-07 13:46:08,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:46:08,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:46:08,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:46:08,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:46:08,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:46:08,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54268d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08, skipping insertion in model container [2019-10-07 13:46:08,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:46:08,399 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:46:08,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:46:08,619 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:46:08,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:46:08,658 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:46:08,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08 WrapperNode [2019-10-07 13:46:08,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:46:08,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:46:08,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:46:08,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:46:08,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (1/1) ... [2019-10-07 13:46:08,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:46:08,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:46:08,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:46:08,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:46:08,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (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 [2019-10-07 13:46:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:46:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:46:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:46:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:46:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:46:09,153 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:46:09,153 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:46:09,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:46:09 BoogieIcfgContainer [2019-10-07 13:46:09,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:46:09,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:46:09,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:46:09,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:46:09,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:46:08" (1/3) ... [2019-10-07 13:46:09,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74639346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:46:09, skipping insertion in model container [2019-10-07 13:46:09,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:46:08" (2/3) ... [2019-10-07 13:46:09,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74639346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:46:09, skipping insertion in model container [2019-10-07 13:46:09,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:46:09" (3/3) ... [2019-10-07 13:46:09,167 INFO L109 eAbstractionObserver]: Analyzing ICFG nec11.c [2019-10-07 13:46:09,186 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:46:09,195 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:46:09,205 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:46:09,229 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:46:09,229 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:46:09,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:46:09,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:46:09,230 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:46:09,230 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:46:09,230 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:46:09,230 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:46:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-07 13:46:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:46:09,251 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:46:09,252 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:46:09,254 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:46:09,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:46:09,260 INFO L82 PathProgramCache]: Analyzing trace with hash -126641576, now seen corresponding path program 1 times [2019-10-07 13:46:09,269 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:46:09,269 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:46:09,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:46:09,270 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:46:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:46:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:46:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:46:09,403 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 13:46:09,403 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 13:46:09,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:46:09 BoogieIcfgContainer [2019-10-07 13:46:09,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:46:09,428 INFO L168 Benchmark]: Toolchain (without parser) took 1068.51 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 106.0 MB in the beginning and 158.0 MB in the end (delta: -52.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,429 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 124.3 MB in the beginning and 124.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.71 ms. Allocated memory is still 141.0 MB. Free memory was 105.6 MB in the beginning and 96.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,431 INFO L168 Benchmark]: Boogie Preprocessor took 143.31 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 96.3 MB in the beginning and 184.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,432 INFO L168 Benchmark]: RCFGBuilder took 351.50 ms. Allocated memory is still 205.5 MB. Free memory was 184.0 MB in the beginning and 170.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,433 INFO L168 Benchmark]: TraceAbstraction took 268.61 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 158.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:46:09,437 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 124.3 MB in the beginning and 124.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.71 ms. Allocated memory is still 141.0 MB. Free memory was 105.6 MB in the beginning and 96.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.31 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 96.3 MB in the beginning and 184.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 351.50 ms. Allocated memory is still 205.5 MB. Free memory was 184.0 MB in the beginning and 170.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268.61 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 158.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int a[5]; [L14] int len=0; [L15] _Bool c=__VERIFIER_nondet_bool(); [L16] int i; VAL [c=0, len=0] [L19] COND FALSE !(\read(c)) VAL [c=0, len=0] [L28] CALL __VERIFIER_assert(len==5) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...