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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:47:35,674 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:47:35,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:47:35,688 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:47:35,689 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:47:35,690 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:47:35,691 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:47:35,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:47:35,695 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:47:35,696 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:47:35,697 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:47:35,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:47:35,698 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:47:35,699 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:47:35,701 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:47:35,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:47:35,702 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:47:35,704 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:47:35,706 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:47:35,708 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:47:35,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:47:35,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:47:35,713 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 15:47:35,730 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:47:35,730 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:47:35,731 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:47:35,733 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:47:35,733 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-15 15:47:35,766 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:47:35,767 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:47:35,769 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:47:35,769 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:47:35,769 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:47:35,769 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:47:35,770 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:47:35,770 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:47:35,770 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-15 15:47:35,770 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:47:35,771 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:47:35,771 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 15:47:35,772 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:47:35,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:47:35,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:47:35,774 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:47:35,774 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:47:35,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:47:35,775 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:47:35,775 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:47:35,775 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:47:35,775 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:47:35,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:47:35,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:47:35,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:47:35,776 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:47:35,777 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:47:35,778 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:47:35,778 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:47:35,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:47:35,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:47:35,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:47:35,859 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:47:35,859 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:47:35,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-09-15 15:47:36,211 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8702b9b3a/1ae9e2d5be4a4813906113812611f537/FLAG06689f5b5 [2018-09-15 15:47:36,398 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:47:36,399 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01_true-unreach-call_true-termination.i [2018-09-15 15:47:36,405 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8702b9b3a/1ae9e2d5be4a4813906113812611f537/FLAG06689f5b5 [2018-09-15 15:47:36,430 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8702b9b3a/1ae9e2d5be4a4813906113812611f537 [2018-09-15 15:47:36,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:47:36,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:47:36,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:36,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:47:36,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:47:36,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36, skipping insertion in model container [2018-09-15 15:47:36,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,473 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:47:36,666 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:36,684 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:47:36,693 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:36,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36 WrapperNode [2018-09-15 15:47:36,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:36,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:36,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:47:36,708 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:47:36,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:36,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:47:36,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:47:36,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:47:36,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (1/1) ... [2018-09-15 15:47:36,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:47:36,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:47:36,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:47:36,764 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:47:36,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (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 15:47:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:47:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:47:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-15 15:47:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-15 15:47:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:47:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:47:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:47:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:47:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 15:47:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 15:47:37,301 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:47:37,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:37 BoogieIcfgContainer [2018-09-15 15:47:37,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:47:37,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:47:37,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:47:37,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:47:37,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:47:36" (1/3) ... [2018-09-15 15:47:37,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3be8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:37, skipping insertion in model container [2018-09-15 15:47:37,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:36" (2/3) ... [2018-09-15 15:47:37,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3be8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:37, skipping insertion in model container [2018-09-15 15:47:37,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:37" (3/3) ... [2018-09-15 15:47:37,311 INFO L112 eAbstractionObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-09-15 15:47:37,320 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:47:37,327 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:47:37,378 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:47:37,379 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:47:37,379 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:47:37,379 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:47:37,380 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:47:37,380 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:47:37,380 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:47:37,380 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:47:37,380 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:47:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-09-15 15:47:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 15:47:37,407 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:37,408 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:37,409 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:37,415 INFO L82 PathProgramCache]: Analyzing trace with hash -623240960, now seen corresponding path program 1 times [2018-09-15 15:47:37,418 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:37,419 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 15:47:37,421 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [18], [59], [65], [70], [73], [75], [81], [83], [84], [85], [89] [2018-09-15 15:47:37,450 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:37,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:37,515 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:47:37,516 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 15:47:37,537 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:47:37,585 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-15 15:47:37,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:47:37,627 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:47:37,629 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:47:37,629 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 15:47:37,629 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:47:37,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 15:47:37,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 15:47:37,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-15 15:47:37,643 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2018-09-15 15:47:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:47:37,779 INFO L93 Difference]: Finished difference Result 92 states and 141 transitions. [2018-09-15 15:47:37,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 15:47:37,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-15 15:47:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:47:37,790 INFO L225 Difference]: With dead ends: 92 [2018-09-15 15:47:37,791 INFO L226 Difference]: Without dead ends: 28 [2018-09-15 15:47:37,795 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 15:47:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-15 15:47:37,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 17. [2018-09-15 15:47:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-15 15:47:37,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-09-15 15:47:37,831 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2018-09-15 15:47:37,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:47:37,832 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-09-15 15:47:37,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 15:47:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-15 15:47:37,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 15:47:37,834 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:37,834 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:37,834 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:37,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1863782436, now seen corresponding path program 1 times [2018-09-15 15:47:37,835 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:37,835 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 15:47:37,835 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [10], [14], [59], [65], [70], [73], [75], [81], [83], [84], [85], [89] [2018-09-15 15:47:37,837 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:37,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:37,847 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 15:47:37,847 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 15:47:37,887 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 15:47:37,912 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 15:47:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:47:37 BoogieIcfgContainer [2018-09-15 15:47:37,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:47:37,913 INFO L168 Benchmark]: Toolchain (without parser) took 1469.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -753.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:47:37,918 INFO L168 Benchmark]: CDTParser took 0.23 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 15:47:37,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.18 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 15:47:37,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.17 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 15:47:37,922 INFO L168 Benchmark]: Boogie Preprocessor took 25.96 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 15:47:37,922 INFO L168 Benchmark]: RCFGBuilder took 538.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:37,923 INFO L168 Benchmark]: TraceAbstraction took 609.12 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:37,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 259.18 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 24.17 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 25.96 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 538.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 609.12 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: 40.3 MB). Peak memory consumption was 40.3 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: [L35] _Bool c = __VERIFIER_nondet_bool(); [L36] COND FALSE !(\read(c)) [L39] CALL f(2) [L12] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L12] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L12] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L12] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L14] COND FALSE !(!(k <= 1073741823)) [L16] COND FALSE !(z < k) [L17] CALL __VERIFIER_assert(z>=1) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 63 SDslu, 70 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.5384615384615384 AbsIntWeakeningRatio, 0.6923076923076923 AbsIntAvgWeakeningVarsNumRemoved, 0.3076923076923077 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 11 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/trex01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-47-37-945.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-47-37-945.csv Received shutdown request...