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-lit/ddlm2013_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:59,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:59,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:59,014 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:59,015 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:59,016 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:59,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:59,019 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:59,020 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:59,021 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:59,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:59,023 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:59,023 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:59,024 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:59,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:59,026 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:59,027 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:59,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:59,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:59,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:59,034 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:59,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:59,037 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:59,038 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:59,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:59,039 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:59,040 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:59,041 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:59,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:59,043 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:59,043 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:59,044 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:59,044 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:59,044 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:59,045 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:59,046 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:59,046 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 21:03:59,062 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:59,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:59,063 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:59,063 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:59,064 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:59,064 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:59,064 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:59,064 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:59,064 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:59,065 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:59,065 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:59,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:59,066 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:59,066 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:59,066 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:59,066 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:59,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:59,067 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:59,067 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:59,067 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:59,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:59,068 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:59,068 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:59,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:59,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:59,069 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:59,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:59,069 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:59,069 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:59,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:59,070 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:59,070 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:59,070 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:59,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:59,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:59,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:59,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:59,133 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:59,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013_true-unreach-call.i [2018-09-15 21:03:59,507 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5ed0264/d1cda15403b24de0b4a8902e14ca2631/FLAGbbf9b0d04 [2018-09-15 21:03:59,701 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:59,702 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013_true-unreach-call.i [2018-09-15 21:03:59,709 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5ed0264/d1cda15403b24de0b4a8902e14ca2631/FLAGbbf9b0d04 [2018-09-15 21:03:59,726 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5ed0264/d1cda15403b24de0b4a8902e14ca2631 [2018-09-15 21:03:59,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:59,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:59,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:59,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:59,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:59,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:59" (1/1) ... [2018-09-15 21:03:59,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3755a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:59, skipping insertion in model container [2018-09-15 21:03:59,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:59" (1/1) ... [2018-09-15 21:03:59,768 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:59,984 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:00,005 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:04:00,020 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:00,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00 WrapperNode [2018-09-15 21:04:00,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:04:00,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:00,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:04:00,039 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:04:00,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:00,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:04:00,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:04:00,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:04:00,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:04:00,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:04:00,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:04:00,102 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:04:00,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (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 21:04:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:04:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:04:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:04:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:04:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:04:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:04:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:04:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:04:00,565 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:04:00,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:04:00 BoogieIcfgContainer [2018-09-15 21:04:00,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:04:00,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:04:00,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:04:00,570 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:04:00,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:59" (1/3) ... [2018-09-15 21:04:00,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648a6a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:04:00, skipping insertion in model container [2018-09-15 21:04:00,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00" (2/3) ... [2018-09-15 21:04:00,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648a6a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:04:00, skipping insertion in model container [2018-09-15 21:04:00,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:04:00" (3/3) ... [2018-09-15 21:04:00,574 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013_true-unreach-call.i [2018-09-15 21:04:00,585 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:04:00,594 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:04:00,649 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:04:00,649 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:04:00,649 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:04:00,650 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:04:00,650 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:04:00,650 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:04:00,650 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:04:00,650 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:04:00,651 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:04:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-15 21:04:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-15 21:04:00,676 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:00,677 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:00,678 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:00,684 INFO L82 PathProgramCache]: Analyzing trace with hash 2066841578, now seen corresponding path program 1 times [2018-09-15 21:04:00,687 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:00,688 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-15 21:04:00,690 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [28], [32], [39], [42], [44], [50], [51], [52], [54] [2018-09-15 21:04:00,732 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:00,732 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:00,818 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:00,820 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-15 21:04:00,840 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:00,893 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 32.5% of their original sizes. [2018-09-15 21:04:00,893 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:00,933 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:00,935 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:00,935 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 21:04:00,936 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:00,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 21:04:00,950 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 21:04:00,950 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 21:04:00,953 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-09-15 21:04:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:01,082 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2018-09-15 21:04:01,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 21:04:01,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-15 21:04:01,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:01,093 INFO L225 Difference]: With dead ends: 51 [2018-09-15 21:04:01,093 INFO L226 Difference]: Without dead ends: 25 [2018-09-15 21:04:01,096 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 9 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 21:04:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-15 21:04:01,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2018-09-15 21:04:01,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-15 21:04:01,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-09-15 21:04:01,133 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2018-09-15 21:04:01,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:01,134 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-09-15 21:04:01,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 21:04:01,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-09-15 21:04:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 21:04:01,135 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:01,136 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:01,136 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:01,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1651906282, now seen corresponding path program 1 times [2018-09-15 21:04:01,137 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:01,137 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 21:04:01,138 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [13], [15], [18], [32], [39], [42], [44], [50], [51], [52], [54] [2018-09-15 21:04:01,140 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:01,140 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:01,162 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:04:01,165 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:01,165 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 21:04:01,187 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:01,226 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 41.19% of their original sizes. [2018-09-15 21:04:01,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:01,377 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:01,377 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:01,377 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 21:04:01,378 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:01,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 21:04:01,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 21:04:01,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-15 21:04:01,380 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 8 states. [2018-09-15 21:04:01,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:01,554 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-09-15 21:04:01,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 21:04:01,555 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-09-15 21:04:01,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:01,556 INFO L225 Difference]: With dead ends: 29 [2018-09-15 21:04:01,556 INFO L226 Difference]: Without dead ends: 22 [2018-09-15 21:04:01,558 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-15 21:04:01,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-15 21:04:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2018-09-15 21:04:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 21:04:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-15 21:04:01,567 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14 [2018-09-15 21:04:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:01,568 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-15 21:04:01,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 21:04:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-15 21:04:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-15 21:04:01,570 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:01,570 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:01,571 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:01,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1973708347, now seen corresponding path program 1 times [2018-09-15 21:04:01,571 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:01,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-15 21:04:01,573 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [13], [15], [18], [20], [23], [32], [39], [42], [44], [50], [51], [52], [54] [2018-09-15 21:04:01,575 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:01,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:01,609 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:04:01,827 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:04:01,827 INFO L272 AbstractInterpreter]: Visited 16 different actions 84 times. Merged at 6 different actions 42 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-09-15 21:04:01,868 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:04:01,893 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:04:01,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:04:01 BoogieIcfgContainer [2018-09-15 21:04:01,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:04:01,895 INFO L168 Benchmark]: Toolchain (without parser) took 2157.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -689.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:01,898 INFO L168 Benchmark]: CDTParser took 0.21 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 21:04:01,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.77 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 21:04:01,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.40 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 21:04:01,902 INFO L168 Benchmark]: Boogie Preprocessor took 36.69 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 21:04:01,902 INFO L168 Benchmark]: RCFGBuilder took 463.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:01,905 INFO L168 Benchmark]: TraceAbstraction took 1327.60 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: 89.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:01,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 296.77 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 25.40 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 36.69 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 463.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1327.60 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: 89.5 MB). Peak memory consumption was 89.5 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: [L11] unsigned int i,j,a,b; [L12] int flag = __VERIFIER_nondet_int(); [L13] a = 0 [L14] b = 0 [L15] j = 1 [L16] COND TRUE \read(flag) [L17] i = 0 [L21] COND TRUE __VERIFIER_nondet_int() [L22] a++ [L22] a++ [L23] b += (j - i) [L24] i += 2 [L25] COND TRUE i%2 == 0 [L26] j += 2 [L21] COND FALSE !(__VERIFIER_nondet_int()) [L31] COND TRUE \read(flag) [L32] CALL __VERIFIER_assert(a == b) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 1.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 39 SDslu, 74 SDs, 0 SdLazy, 43 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9291666666666667 AbsIntWeakeningRatio, 0.6666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 0.8333333333333334 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/ddlm2013_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-04-01-937.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ddlm2013_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-04-01-937.csv Received shutdown request...