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_OCT-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 17:20:25,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:20:25,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:20:25,515 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:20:25,515 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:20:25,516 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:20:25,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:20:25,519 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:20:25,521 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:20:25,522 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:20:25,523 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:20:25,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:20:25,525 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:20:25,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:20:25,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:20:25,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:20:25,528 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:20:25,530 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:20:25,532 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:20:25,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:20:25,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:20:25,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:20:25,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 17:20:25,539 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 17:20:25,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 17:20:25,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 17:20:25,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 17:20:25,542 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 17:20:25,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 17:20:25,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 17:20:25,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 17:20:25,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 17:20:25,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 17:20:25,572 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:20:25,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:20:25,573 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:20:25,574 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:20:25,574 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:20:25,574 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:20:25,574 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:20:25,574 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:20:25,575 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:20:25,575 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:20:25,575 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:20:25,575 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:20:25,577 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:20:25,577 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:20:25,577 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:20:25,577 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:20:25,577 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:20:25,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:20:25,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:20:25,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:20:25,578 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:20:25,581 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:20:25,581 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:20:25,581 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:20:25,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:25,582 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:20:25,582 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:20:25,582 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:20:25,582 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:20:25,582 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:20:25,583 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:20:25,583 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:20:25,583 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:20:25,583 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:20:25,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:20:25,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:20:25,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:20:25,671 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:20:25,671 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:20:25,672 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2018-09-15 17:20:26,018 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5870a4413/6cce44fa7a4a47b69c17c7d5b64c03e7/FLAG160836fd7 [2018-09-15 17:20:26,149 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:20:26,150 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2018-09-15 17:20:26,156 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5870a4413/6cce44fa7a4a47b69c17c7d5b64c03e7/FLAG160836fd7 [2018-09-15 17:20:26,174 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5870a4413/6cce44fa7a4a47b69c17c7d5b64c03e7 [2018-09-15 17:20:26,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:20:26,193 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:20:26,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:26,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:20:26,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:20:26,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d56e01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26, skipping insertion in model container [2018-09-15 17:20:26,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,223 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:20:26,477 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:26,497 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:20:26,504 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:26,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26 WrapperNode [2018-09-15 17:20:26,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:26,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:26,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:20:26,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:20:26,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:26,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:20:26,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:20:26,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:20:26,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (1/1) ... [2018-09-15 17:20:26,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:20:26,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:20:26,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:20:26,566 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:20:26,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (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 17:20:26,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:20:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:20:26,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:20:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:20:26,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:20:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:20:26,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:20:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:20:26,950 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:20:26,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:26 BoogieIcfgContainer [2018-09-15 17:20:26,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:20:26,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:20:26,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:20:26,956 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:20:26,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:20:26" (1/3) ... [2018-09-15 17:20:26,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38070763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:26, skipping insertion in model container [2018-09-15 17:20:26,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:26" (2/3) ... [2018-09-15 17:20:26,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38070763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:26, skipping insertion in model container [2018-09-15 17:20:26,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:26" (3/3) ... [2018-09-15 17:20:26,959 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007_true-unreach-call_true-termination.c.i [2018-09-15 17:20:26,969 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:20:26,977 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:20:27,028 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:20:27,029 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:20:27,029 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:20:27,029 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:20:27,030 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:20:27,030 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:20:27,030 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:20:27,030 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:20:27,030 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:20:27,048 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-15 17:20:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 17:20:27,054 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:27,055 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:27,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:27,061 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-09-15 17:20:27,064 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:27,065 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 17:20:27,067 INFO L202 CegarAbsIntRunner]: [0], [4], [22], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 17:20:27,119 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:27,119 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:27,158 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:27,159 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 17:20:27,194 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:27,250 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:20:27,250 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:27,285 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:27,287 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:27,287 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:27,288 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:27,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:27,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:27,304 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:27,307 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-15 17:20:27,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:27,366 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-09-15 17:20:27,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:27,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 17:20:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:27,388 INFO L225 Difference]: With dead ends: 39 [2018-09-15 17:20:27,388 INFO L226 Difference]: Without dead ends: 17 [2018-09-15 17:20:27,394 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 17:20:27,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-15 17:20:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-09-15 17:20:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-15 17:20:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-09-15 17:20:27,436 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-09-15 17:20:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:27,437 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-09-15 17:20:27,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-09-15 17:20:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 17:20:27,438 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:27,438 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:27,439 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash -717461825, now seen corresponding path program 1 times [2018-09-15 17:20:27,440 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:27,440 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 17:20:27,440 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 17:20:27,442 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:27,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:27,448 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:27,448 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 17:20:27,475 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:27,487 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 17:20:27,487 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:27,504 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:27,504 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:27,505 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:27,505 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:27,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:27,506 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:27,506 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:27,507 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-09-15 17:20:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:27,579 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2018-09-15 17:20:27,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:27,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 17:20:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:27,582 INFO L225 Difference]: With dead ends: 24 [2018-09-15 17:20:27,582 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 17:20:27,584 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 17:20:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 17:20:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-15 17:20:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-15 17:20:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-09-15 17:20:27,590 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-09-15 17:20:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:27,590 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-09-15 17:20:27,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-09-15 17:20:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 17:20:27,591 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:27,591 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:27,592 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:27,592 INFO L82 PathProgramCache]: Analyzing trace with hash 64649018, now seen corresponding path program 1 times [2018-09-15 17:20:27,592 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:27,592 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 17:20:27,593 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 17:20:27,594 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:27,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:27,620 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:27,621 INFO L272 AbstractInterpreter]: Visited 9 different actions 41 times. Merged at 3 different actions 24 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-09-15 17:20:27,657 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:27,674 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 17:20:27,674 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:27,698 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:27,699 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:27,699 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:27,699 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:27,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:27,700 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:27,700 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:27,700 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-09-15 17:20:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:27,747 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-09-15 17:20:27,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:27,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-15 17:20:27,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:27,749 INFO L225 Difference]: With dead ends: 24 [2018-09-15 17:20:27,749 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 17:20:27,750 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 17:20:27,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 17:20:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-15 17:20:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 17:20:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-15 17:20:27,759 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14 [2018-09-15 17:20:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:27,760 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-15 17:20:27,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:27,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-15 17:20:27,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 17:20:27,761 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:27,761 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:27,761 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:27,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1506199393, now seen corresponding path program 1 times [2018-09-15 17:20:27,762 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:27,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 17:20:27,762 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [19], [27], [30], [32], [38], [39], [40], [42] [2018-09-15 17:20:27,764 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:27,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:27,804 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:20:27,804 INFO L272 AbstractInterpreter]: Visited 14 different actions 67 times. Merged at 5 different actions 31 times. Widened at 2 different actions 6 times. Found 4 fixpoints after 2 different actions. Largest state had 2 variables. [2018-09-15 17:20:27,814 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:20:27,830 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:20:27,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:27 BoogieIcfgContainer [2018-09-15 17:20:27,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:27,832 INFO L168 Benchmark]: Toolchain (without parser) took 1645.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:27,834 INFO L168 Benchmark]: CDTParser took 0.20 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 17:20:27,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.52 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 17:20:27,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.67 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 17:20:27,836 INFO L168 Benchmark]: Boogie Preprocessor took 22.42 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 17:20:27,837 INFO L168 Benchmark]: RCFGBuilder took 386.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -847.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:27,838 INFO L168 Benchmark]: TraceAbstraction took 878.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:27,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.52 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 23.67 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 22.42 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 386.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -847.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 878.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 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, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 7 SDslu, 37 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 0.1875 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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-27-867.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gj2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-27-867.csv Received shutdown request...