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-industry-pattern/nested_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:04:05,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:04:05,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:04:05,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:04:05,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:04:05,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:04:05,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:04:05,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:04:05,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:04:05,931 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:04:05,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:04:05,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:04:05,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:04:05,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:04:05,945 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:04:05,946 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:04:05,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:04:05,950 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:04:05,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:04:05,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:04:05,955 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:04:05,956 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:04:05,958 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:04:05,959 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:04:05,959 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:04:05,960 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:04:05,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:04:05,962 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:04:05,962 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:04:05,963 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:04:05,964 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:04:05,964 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:04:05,965 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:04:05,965 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:04:05,968 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:04:05,969 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:04:05,969 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 [2018-09-15 21:04:05,997 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:04:05,997 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:04:05,998 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:04:05,999 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:04:05,999 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:04:05,999 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:04:05,999 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:04:06,000 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:04:06,000 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:04:06,000 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:04:06,000 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:04:06,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:04:06,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:04:06,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:04:06,002 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:04:06,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:04:06,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:04:06,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:04:06,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:04:06,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:04:06,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:04:06,004 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:04:06,004 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:04:06,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:04:06,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:04:06,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:04:06,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:04:06,005 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:04:06,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:04:06,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:04:06,006 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:04:06,006 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:04:06,006 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:04:06,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:04:06,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:04:06,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:04:06,106 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:04:06,107 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:04:06,108 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/nested_true-unreach-call.c [2018-09-15 21:04:06,501 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a8b3783/ce0ea57811734c5f9fd4ed9ae7c21c36/FLAG4c2abf802 [2018-09-15 21:04:06,656 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:04:06,657 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/nested_true-unreach-call.c [2018-09-15 21:04:06,663 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a8b3783/ce0ea57811734c5f9fd4ed9ae7c21c36/FLAG4c2abf802 [2018-09-15 21:04:06,678 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a8b3783/ce0ea57811734c5f9fd4ed9ae7c21c36 [2018-09-15 21:04:06,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:04:06,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:04:06,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:04:06,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:04:06,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:04:06,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6dd776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06, skipping insertion in model container [2018-09-15 21:04:06,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,716 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:04:06,909 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:06,928 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:04:06,935 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:06,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06 WrapperNode [2018-09-15 21:04:06,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:04:06,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:06,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:04:06,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:04:06,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:06,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:04:06,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:04:06,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:04:06,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (1/1) ... [2018-09-15 21:04:06,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:04:07,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:04:07,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:04:07,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:04:07,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (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 [2018-09-15 21:04:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:04:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:04:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure nondet [2018-09-15 21:04:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet [2018-09-15 21:04:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:04:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:04:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:04:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:04:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:04:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:04:07,577 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:04:07,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:04:07 BoogieIcfgContainer [2018-09-15 21:04:07,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:04:07,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:04:07,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:04:07,583 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:04:07,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:04:06" (1/3) ... [2018-09-15 21:04:07,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d726f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:04:07, skipping insertion in model container [2018-09-15 21:04:07,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:06" (2/3) ... [2018-09-15 21:04:07,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d726f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:04:07, skipping insertion in model container [2018-09-15 21:04:07,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:04:07" (3/3) ... [2018-09-15 21:04:07,587 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_true-unreach-call.c [2018-09-15 21:04:07,597 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:04:07,606 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:04:07,660 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:04:07,661 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:04:07,661 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:04:07,661 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:04:07,661 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:04:07,661 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:04:07,662 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:04:07,662 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:04:07,662 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:04:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-09-15 21:04:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 21:04:07,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:07,690 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:07,692 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:07,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1030098894, now seen corresponding path program 1 times [2018-09-15 21:04:07,698 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:07,699 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 21:04:07,701 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [8], [12], [18], [36], [40], [48], [55], [58], [60], [66], [67], [68], [70], [71], [72] [2018-09-15 21:04:07,740 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:07,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:07,836 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:07,838 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-15 21:04:07,856 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:07,923 INFO L232 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 83.33% of their original sizes. [2018-09-15 21:04:07,924 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:07,975 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:07,976 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:07,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 21:04:07,977 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:07,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 21:04:07,988 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 21:04:07,988 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 21:04:07,991 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2018-09-15 21:04:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:08,171 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2018-09-15 21:04:08,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 21:04:08,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-09-15 21:04:08,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:08,182 INFO L225 Difference]: With dead ends: 55 [2018-09-15 21:04:08,182 INFO L226 Difference]: Without dead ends: 36 [2018-09-15 21:04:08,187 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 21:04:08,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-15 21:04:08,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2018-09-15 21:04:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-15 21:04:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-09-15 21:04:08,233 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 19 [2018-09-15 21:04:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:08,234 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-09-15 21:04:08,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 21:04:08,234 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-09-15 21:04:08,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-15 21:04:08,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:08,236 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:08,236 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:08,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1045124110, now seen corresponding path program 1 times [2018-09-15 21:04:08,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:08,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-09-15 21:04:08,238 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [8], [12], [18], [22], [25], [27], [32], [34], [40], [48], [55], [58], [60], [66], [67], [68], [70], [71], [72] [2018-09-15 21:04:08,239 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:08,240 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:08,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:08,290 INFO L272 AbstractInterpreter]: Visited 18 different actions 43 times. Merged at 4 different actions 20 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-09-15 21:04:08,325 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:08,361 INFO L232 lantSequenceWeakener]: Weakened 17 states. On average, predicates are now at 59.8% of their original sizes. [2018-09-15 21:04:08,361 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:08,441 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:08,441 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:08,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 21:04:08,441 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:08,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 21:04:08,443 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 21:04:08,443 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-15 21:04:08,443 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 6 states. [2018-09-15 21:04:08,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:08,642 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2018-09-15 21:04:08,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 21:04:08,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-09-15 21:04:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:08,644 INFO L225 Difference]: With dead ends: 54 [2018-09-15 21:04:08,644 INFO L226 Difference]: Without dead ends: 39 [2018-09-15 21:04:08,646 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-15 21:04:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-09-15 21:04:08,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-09-15 21:04:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-15 21:04:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-09-15 21:04:08,654 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 24 [2018-09-15 21:04:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:08,655 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-09-15 21:04:08,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 21:04:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-09-15 21:04:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-15 21:04:08,656 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:08,656 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:08,657 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:08,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1102382412, now seen corresponding path program 1 times [2018-09-15 21:04:08,657 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:08,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-09-15 21:04:08,658 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [8], [12], [18], [22], [25], [27], [32], [34], [42], [48], [55], [58], [60], [66], [67], [68], [70], [71], [72] [2018-09-15 21:04:08,660 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:08,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:08,737 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:04:08,737 INFO L272 AbstractInterpreter]: Visited 23 different actions 48 times. Merged at 4 different actions 20 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-09-15 21:04:08,752 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:04:08,768 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:04:08,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:04:08 BoogieIcfgContainer [2018-09-15 21:04:08,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:04:08,769 INFO L168 Benchmark]: Toolchain (without parser) took 2079.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -725.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:08,772 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:04:08,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.19 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. [2018-09-15 21:04:08,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.46 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. [2018-09-15 21:04:08,774 INFO L168 Benchmark]: Boogie Preprocessor took 24.31 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. [2018-09-15 21:04:08,775 INFO L168 Benchmark]: RCFGBuilder took 578.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:08,776 INFO L168 Benchmark]: TraceAbstraction took 1189.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:08,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.19 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 24.46 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 24.31 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 578.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1189.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: 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: [L7] int last ; [L22] CALL, EXPR nondet() [L17] int x; [L18] RET return x; [L22] EXPR nondet() [L22] last = nondet() [L23] int a=0,b=0,c=0,st=0; [L23] int a=0,b=0,c=0,st=0; [L23] int a=0,b=0,c=0,st=0; [L23] int a=0,b=0,c=0,st=0; [L24] COND TRUE 1 [L25] st=1 [L26] c=0 [L26] COND TRUE c<200000 [L27] COND FALSE !(c==last) [L26] c++ [L26] c++ [L26] COND FALSE !(c<200000) [L28] COND FALSE !(st==0 && c==last+1) [L30] a+=2 [L30] b+=2 [L31] COND FALSE !(c==last && st==0) [L33] CALL __VERIFIER_assert(a==b && c==200000) [L9] COND TRUE !(cond) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. UNKNOWN Result, 1.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 31 SDslu, 64 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.7845528455284554 AbsIntWeakeningRatio, 0.6585365853658537 AbsIntAvgWeakeningVarsNumRemoved, 0.7317073170731707 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-04-08-794.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-04-08-794.csv Received shutdown request...