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/gj2007_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:59,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:59,320 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:59,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:59,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:59,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:59,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:59,341 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:59,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:59,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:59,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:59,345 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:59,346 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:59,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:59,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:59,349 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:59,350 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:59,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:59,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:59,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:59,360 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:59,361 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:59,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 21:03:59,373 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:59,373 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:59,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:59,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:59,375 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 21:03:59,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:59,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:59,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:59,400 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:59,400 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:59,400 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:59,403 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:59,403 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:59,403 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:59,403 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:59,404 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:59,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:59,405 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:59,405 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:59,405 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:59,406 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:59,407 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:59,407 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:59,407 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:59,407 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:59,408 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:59,408 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:59,408 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:59,408 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:59,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:59,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:59,410 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:59,410 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:59,410 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:59,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:59,411 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:59,411 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:59,411 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:59,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:59,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:59,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:59,497 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:59,497 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:59,498 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2018-09-15 21:03:59,848 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a37dca12/d54c3a09ea9d4cda9abba43347306bd5/FLAGdfead1e1b [2018-09-15 21:04:00,008 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:04:00,009 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2018-09-15 21:04:00,016 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a37dca12/d54c3a09ea9d4cda9abba43347306bd5/FLAGdfead1e1b [2018-09-15 21:04:00,034 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a37dca12/d54c3a09ea9d4cda9abba43347306bd5 [2018-09-15 21:04:00,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:04:00,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:04:00,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:04:00,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:04:00,063 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:04:00,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e9aa80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00, skipping insertion in model container [2018-09-15 21:04:00,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:04:00" (1/1) ... [2018-09-15 21:04:00,080 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:04:00,290 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:00,311 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:04:00,316 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:04:00,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:04:00 WrapperNode [2018-09-15 21:04:00,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:04:00,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:00,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:04:00,331 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:04:00,342 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 21:04:00,349 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 21:04:00,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:04:00,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:04:00,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:04:00,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:04:00,368 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 21:04:00,368 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 21:04:00,369 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 21:04:00,369 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 21:04:00,370 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 21:04:00,376 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 21:04:00,377 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 21:04:00,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:04:00,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:04:00,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:04:00,379 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:04:00,380 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 21:04:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:04:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:04:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:04:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:04:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:04:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:04:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:04:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:04:00,717 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:04:00,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:04:00 BoogieIcfgContainer [2018-09-15 21:04:00,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:04:00,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:04:00,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:04:00,722 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:04:00,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:04:00" (1/3) ... [2018-09-15 21:04:00,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678b159 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 21:04:00,723 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 21:04:00,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678b159 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 21:04:00,724 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 21:04:00,726 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007_true-unreach-call_true-termination.c.i [2018-09-15 21:04:00,734 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:04:00,740 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:04:00,791 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:04:00,792 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:04:00,792 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:04:00,792 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:04:00,793 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:04:00,793 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:04:00,793 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:04:00,793 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:04:00,793 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:04:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-15 21:04:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 21:04:00,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:00,831 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:00,833 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:00,838 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-09-15 21:04:00,842 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:00,843 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 21:04:00,845 INFO L202 CegarAbsIntRunner]: [0], [4], [22], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 21:04:00,895 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:00,895 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:00,968 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:00,969 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 21:04:01,002 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:01,076 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 21:04:01,077 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:01,118 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:01,120 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:01,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:04:01,120 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:01,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:04:01,135 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:04:01,136 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,140 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-15 21:04:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:01,188 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-09-15 21:04:01,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:04:01,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 21:04:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:01,200 INFO L225 Difference]: With dead ends: 39 [2018-09-15 21:04:01,201 INFO L226 Difference]: Without dead ends: 17 [2018-09-15 21:04:01,204 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-15 21:04:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-09-15 21:04:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-15 21:04:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-09-15 21:04:01,245 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-09-15 21:04:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:01,246 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-09-15 21:04:01,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:04:01,246 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-09-15 21:04:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 21:04:01,247 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:01,247 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:01,248 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:01,248 INFO L82 PathProgramCache]: Analyzing trace with hash -717461825, now seen corresponding path program 1 times [2018-09-15 21:04:01,248 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:01,249 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 21:04:01,249 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 21:04:01,250 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:01,251 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:01,262 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:01,263 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 21:04:01,270 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:01,294 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 21:04:01,296 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:01,316 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:01,317 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:01,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:04:01,317 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:01,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:04:01,318 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:04:01,319 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,319 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-09-15 21:04:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:04:01,375 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2018-09-15 21:04:01,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:04:01,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 21:04:01,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:01,377 INFO L225 Difference]: With dead ends: 24 [2018-09-15 21:04:01,377 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 21:04:01,379 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 21:04:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-15 21:04:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-15 21:04:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-09-15 21:04:01,384 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-09-15 21:04:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:01,385 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-09-15 21:04:01,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:04:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-09-15 21:04:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 21:04:01,386 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:01,387 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:01,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:01,387 INFO L82 PathProgramCache]: Analyzing trace with hash 64649018, now seen corresponding path program 1 times [2018-09-15 21:04:01,388 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:01,388 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 21:04:01,388 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 21:04:01,390 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:01,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:01,420 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:04:01,421 INFO L272 AbstractInterpreter]: Visited 9 different actions 29 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-09-15 21:04:01,456 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:04:01,481 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 21:04:01,481 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:04:01,511 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:04:01,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:04:01,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:04:01,513 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:04:01,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:04:01,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:04:01,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,514 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 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 24 states and 26 transitions. [2018-09-15 21:04:01,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:04:01,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-15 21:04:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:04:01,556 INFO L225 Difference]: With dead ends: 24 [2018-09-15 21:04:01,556 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 21:04:01,557 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:04:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 21:04:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-15 21:04:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 21:04:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-15 21:04:01,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14 [2018-09-15 21:04:01,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:04:01,563 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-15 21:04:01,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:04:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-15 21:04:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 21:04:01,564 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:04:01,564 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:04:01,564 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:04:01,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1506199393, now seen corresponding path program 1 times [2018-09-15 21:04:01,565 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:04:01,565 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 21:04:01,565 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [19], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 21:04:01,567 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:04:01,567 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:04:01,605 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:04:01,605 INFO L272 AbstractInterpreter]: Visited 14 different actions 53 times. Merged at 5 different actions 22 times. Widened at 2 different actions 3 times. Found 4 fixpoints after 2 different actions. Largest state had 2 variables. [2018-09-15 21:04:01,616 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:04:01,631 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:04:01,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:04:01 BoogieIcfgContainer [2018-09-15 21:04:01,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:04:01,633 INFO L168 Benchmark]: Toolchain (without parser) took 1584.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -736.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:04:01,635 INFO L168 Benchmark]: CDTParser took 0.22 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 21:04:01,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.74 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 21:04:01,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.45 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 21:04:01,637 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 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 21:04:01,638 INFO L168 Benchmark]: RCFGBuilder took 338.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:01,639 INFO L168 Benchmark]: TraceAbstraction took 913.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2018-09-15 21:04:01,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 276.74 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 24.45 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 22.99 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 338.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 913.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 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] int x = 0; [L12] int y = 50; [L13] COND TRUE x < 100 [L14] COND TRUE x < 50 [L15] x = x + 1 [L13] COND TRUE x < 100 [L14] COND FALSE !(x < 50) [L17] x = x + 1 [L18] y = y + 1 [L13] COND FALSE !(x < 100) [L21] CALL __VERIFIER_assert(y == 100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 0.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 7 SDslu, 37 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.375 AbsIntAvgWeakeningVarsNumRemoved, 0.03125 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 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/gj2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-04-01-658.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gj2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-04-01-658.csv Received shutdown request...