/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/nec11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:26:54,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:26:54,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:26:54,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:26:54,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:26:54,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:26:54,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:26:54,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:26:54,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:26:54,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:26:54,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:26:54,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:26:54,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:26:54,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:26:54,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:26:54,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:26:54,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:26:54,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:26:54,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:26:54,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:26:54,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:26:54,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:26:54,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:26:54,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:26:54,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 04:26:54,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 04:26:54,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 04:26:54,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 04:26:54,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 04:26:54,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 04:26:54,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:26:54,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:26:54,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:26:54,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:26:54,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:26:54,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:26:54,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:26:54,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:26:54,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:26:54,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:26:54,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:26:54,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:26:54,428 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:26:54,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:26:54,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:26:54,433 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:26:54,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:26:54,433 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:26:54,435 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:26:54,435 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:26:54,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:26:54,436 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:26:54,436 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:26:54,436 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:26:54,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:26:54,437 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:26:54,437 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:26:54,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:26:54,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:26:54,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:26:54,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:26:54,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:26:54,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:26:54,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:26:54,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:26:54,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:26:54,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:26:54,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:26:54,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:26:54,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:26:54,443 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:26:54,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:26:54,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:26:54,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:26:54,443 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:26:54,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:26:54,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:26:54,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:26:54,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:26:54,733 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:26:54,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec11.c [2019-11-24 04:26:54,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23cebb1d/ff50b93f8b2e4f258c57113acc18cf07/FLAG937e89fa4 [2019-11-24 04:26:55,279 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:26:55,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec11.c [2019-11-24 04:26:55,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23cebb1d/ff50b93f8b2e4f258c57113acc18cf07/FLAG937e89fa4 [2019-11-24 04:26:55,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23cebb1d/ff50b93f8b2e4f258c57113acc18cf07 [2019-11-24 04:26:55,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:26:55,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:26:55,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:26:55,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:26:55,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:26:55,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:55,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5c00c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55, skipping insertion in model container [2019-11-24 04:26:55,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:55,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:26:55,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:26:55,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:26:55,900 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:26:55,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:26:55,931 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:26:55,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55 WrapperNode [2019-11-24 04:26:55,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:26:55,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:26:55,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:26:55,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:26:55,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:26:56,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:26:56,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:26:56,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:26:56,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (1/1) ... [2019-11-24 04:26:56,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:26:56,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:26:56,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:26:56,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:26:56,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (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 [2019-11-24 04:26:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:26:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:26:56,390 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:26:56,391 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 04:26:56,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:26:56 BoogieIcfgContainer [2019-11-24 04:26:56,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:26:56,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:26:56,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:26:56,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:26:56,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:26:55" (1/3) ... [2019-11-24 04:26:56,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e89d5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:26:56, skipping insertion in model container [2019-11-24 04:26:56,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:55" (2/3) ... [2019-11-24 04:26:56,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e89d5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:26:56, skipping insertion in model container [2019-11-24 04:26:56,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:26:56" (3/3) ... [2019-11-24 04:26:56,406 INFO L109 eAbstractionObserver]: Analyzing ICFG nec11.c [2019-11-24 04:26:56,415 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:26:56,424 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:26:56,435 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:26:56,456 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:26:56,457 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:26:56,457 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:26:56,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:26:56,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:26:56,457 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:26:56,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:26:56,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:26:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-24 04:26:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:26:56,475 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:26:56,476 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:26:56,476 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:26:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:26:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash 994444, now seen corresponding path program 1 times [2019-11-24 04:26:56,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:26:56,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084508067] [2019-11-24 04:26:56,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:26:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 04:26:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 04:26:56,601 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-24 04:26:56,602 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-24 04:26:56,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:26:56 BoogieIcfgContainer [2019-11-24 04:26:56,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:26:56,620 INFO L168 Benchmark]: Toolchain (without parser) took 950.01 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 153.3 MB in the end (delta: -52.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,621 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.47 ms. Allocated memory is still 137.4 MB. Free memory was 100.3 MB in the beginning and 90.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.01 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.9 MB in the beginning and 180.0 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,624 INFO L168 Benchmark]: Boogie Preprocessor took 24.38 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 179.3 MB in the end (delta: 655.7 kB). Peak memory consumption was 655.7 kB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,625 INFO L168 Benchmark]: RCFGBuilder took 329.06 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 165.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,626 INFO L168 Benchmark]: TraceAbstraction took 223.30 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 153.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:56,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.47 ms. Allocated memory is still 137.4 MB. Free memory was 100.3 MB in the beginning and 90.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 106.01 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.9 MB in the beginning and 180.0 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.38 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 179.3 MB in the end (delta: 655.7 kB). Peak memory consumption was 655.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 329.06 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 165.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223.30 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 153.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 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; [L19] COND FALSE !(\read(c)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred 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, 4 NumberOfCodeBlocks, 4 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...