java -Xmx8000000000 -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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:36:18,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:36:18,985 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:36:18,998 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:36:18,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:36:19,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:36:19,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:36:19,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:36:19,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:36:19,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:36:19,007 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:36:19,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:36:19,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:36:19,010 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:36:19,011 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:36:19,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:36:19,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:36:19,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:36:19,019 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:36:19,020 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:36:19,021 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:36:19,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:36:19,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:36:19,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:36:19,025 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:36:19,026 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:36:19,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:36:19,028 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:36:19,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:36:19,030 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:36:19,030 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:36:19,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:36:19,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:36:19,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:36:19,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:36:19,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:36:19,033 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 11:36:19,048 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:36:19,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:36:19,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:36:19,049 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:36:19,050 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:36:19,050 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:36:19,050 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:36:19,050 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 11:36:19,050 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 11:36:19,051 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:36:19,051 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:36:19,051 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:36:19,052 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:36:19,052 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:36:19,052 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:36:19,052 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:36:19,053 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:36:19,053 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:36:19,053 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:36:19,053 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:36:19,054 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:36:19,054 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:36:19,054 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:36:19,054 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:36:19,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:36:19,054 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:36:19,055 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:36:19,055 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:36:19,055 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:36:19,055 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:36:19,055 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:36:19,056 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:36:19,056 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:36:19,056 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:36:19,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:36:19,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:36:19,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:36:19,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:36:19,125 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:36:19,126 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-19 11:36:19,481 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6214d86bf/2a023c8f1e37420b9c8567d3cc598a56/FLAG27e5384a4 [2018-09-19 11:36:19,613 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:36:19,614 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-19 11:36:19,624 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6214d86bf/2a023c8f1e37420b9c8567d3cc598a56/FLAG27e5384a4 [2018-09-19 11:36:19,640 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6214d86bf/2a023c8f1e37420b9c8567d3cc598a56 [2018-09-19 11:36:19,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:36:19,653 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:36:19,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:19,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:36:19,662 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:36:19,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537cd63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19, skipping insertion in model container [2018-09-19 11:36:19,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,679 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:36:19,907 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:19,926 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:36:19,936 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:19,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19 WrapperNode [2018-09-19 11:36:19,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:19,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:19,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:36:19,955 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:36:19,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:19,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:36:19,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:36:19,980 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:36:19,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:19,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:20,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:20,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (1/1) ... [2018-09-19 11:36:20,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:36:20,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:36:20,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:36:20,024 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:36:20,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (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 [2018-09-19 11:36:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:36:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:36:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:36:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:36:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:36:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:36:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 11:36:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 11:36:20,636 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:36:20,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:20 BoogieIcfgContainer [2018-09-19 11:36:20,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:36:20,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:36:20,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:36:20,641 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:36:20,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:36:19" (1/3) ... [2018-09-19 11:36:20,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdc3b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:20, skipping insertion in model container [2018-09-19 11:36:20,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:19" (2/3) ... [2018-09-19 11:36:20,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdc3b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:20, skipping insertion in model container [2018-09-19 11:36:20,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:20" (3/3) ... [2018-09-19 11:36:20,645 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call_false-termination.i [2018-09-19 11:36:20,656 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:36:20,666 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:36:20,721 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:36:20,722 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:36:20,723 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:36:20,723 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:36:20,723 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:36:20,723 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:36:20,723 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:36:20,723 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:36:20,724 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:36:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-09-19 11:36:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-19 11:36:20,750 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:20,751 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:20,752 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:20,758 INFO L82 PathProgramCache]: Analyzing trace with hash -372910930, now seen corresponding path program 1 times [2018-09-19 11:36:20,761 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:20,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-19 11:36:20,764 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [21], [26], [52], [68], [71], [73], [79], [80], [81], [107] [2018-09-19 11:36:20,803 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:20,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:20,910 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 11:36:20,911 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 11:36:20,925 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 11:36:20,942 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 11:36:20,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:36:20 BoogieIcfgContainer [2018-09-19 11:36:20,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:36:20,944 INFO L168 Benchmark]: Toolchain (without parser) took 1292.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -727.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:20,946 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:20,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:20,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:20,948 INFO L168 Benchmark]: Boogie Preprocessor took 40.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:20,948 INFO L168 Benchmark]: RCFGBuilder took 615.65 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:20,950 INFO L168 Benchmark]: TraceAbstraction took 305.46 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:20,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 298.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 615.65 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 305.46 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] int len; [L13] int i; [L14] int j; [L15] int bufsize; [L16] bufsize = __VERIFIER_nondet_int() [L17] COND FALSE !(bufsize < 0) [L18] len = __VERIFIER_nondet_int() [L19] int limit = bufsize - 4; [L20] i = 0 [L20] COND TRUE i < len [L21] j = 0 [L21] COND TRUE i < len && j < limit [L22] COND FALSE !(i + 1 < len) [L43] CALL __VERIFIER_assert(i