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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:35,559 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:35,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:35,576 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:35,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:35,577 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:35,578 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:35,580 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:35,582 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:35,583 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:35,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:35,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:35,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:35,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:35,588 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:35,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:35,589 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:35,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:35,594 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:35,596 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:35,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:35,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:35,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:35,625 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:29:35,650 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:35,650 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:35,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:35,652 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:35,653 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:35,653 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:35,653 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:35,654 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:35,654 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:35,654 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:35,654 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:35,655 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:35,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:35,656 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:35,656 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:35,656 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:35,656 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:35,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:35,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:35,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:35,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:35,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:35,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:35,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:35,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:35,659 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:35,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:35,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:35,660 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:35,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:35,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:35,661 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:35,661 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:35,661 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:35,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:35,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:35,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:35,750 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:35,750 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:35,751 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-09-19 01:29:36,103 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b958efe/9f00c30b19514686952aacdab6392c59/FLAG6e3943aa9 [2018-09-19 01:29:36,281 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:36,281 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-09-19 01:29:36,286 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b958efe/9f00c30b19514686952aacdab6392c59/FLAG6e3943aa9 [2018-09-19 01:29:36,302 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b958efe/9f00c30b19514686952aacdab6392c59 [2018-09-19 01:29:36,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:36,316 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:36,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:36,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:36,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:36,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2822914c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36, skipping insertion in model container [2018-09-19 01:29:36,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,340 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:36,526 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:36,543 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:36,548 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:36,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36 WrapperNode [2018-09-19 01:29:36,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:36,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:36,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:36,562 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:36,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:36,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:36,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:36,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:36,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (1/1) ... [2018-09-19 01:29:36,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:36,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:36,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:36,603 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:36,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (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 [2018-09-19 01:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:36,976 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:36,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:36 BoogieIcfgContainer [2018-09-19 01:29:36,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:36,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:36,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:36,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:36,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:36" (1/3) ... [2018-09-19 01:29:36,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe675aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:36, skipping insertion in model container [2018-09-19 01:29:36,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:36" (2/3) ... [2018-09-19 01:29:36,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe675aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:36, skipping insertion in model container [2018-09-19 01:29:36,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:36" (3/3) ... [2018-09-19 01:29:36,986 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call_true-termination.c.i [2018-09-19 01:29:36,998 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:37,007 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:37,063 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:37,064 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:37,064 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:37,064 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:37,065 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:37,065 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:37,065 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:37,065 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:37,065 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 01:29:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 01:29:37,092 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:37,093 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:37,094 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:37,101 INFO L82 PathProgramCache]: Analyzing trace with hash 536890419, now seen corresponding path program 1 times [2018-09-19 01:29:37,110 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:37,114 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 01:29:37,116 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [20], [24], [31], [34], [36], [42], [43], [44], [46] [2018-09-19 01:29:37,173 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:37,173 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:37,270 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:37,271 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 01:29:37,284 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:37,349 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 25% of their original sizes. [2018-09-19 01:29:37,350 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:37,423 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:37,424 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:37,425 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 01:29:37,425 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:37,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 01:29:37,435 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 01:29:37,436 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 01:29:37,439 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-09-19 01:29:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:37,581 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2018-09-19 01:29:37,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 01:29:37,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-19 01:29:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:37,593 INFO L225 Difference]: With dead ends: 41 [2018-09-19 01:29:37,593 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 01:29:37,597 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 01:29:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 01:29:37,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2018-09-19 01:29:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 01:29:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-19 01:29:37,635 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-09-19 01:29:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:37,636 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-19 01:29:37,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 01:29:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-19 01:29:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 01:29:37,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:37,637 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:37,639 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:37,639 INFO L82 PathProgramCache]: Analyzing trace with hash 704732235, now seen corresponding path program 1 times [2018-09-19 01:29:37,640 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:37,640 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 01:29:37,640 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [24], [31], [34], [36], [42], [43], [44], [46] [2018-09-19 01:29:37,644 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:37,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:37,686 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:37,686 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 01:29:37,728 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:37,778 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 01:29:37,778 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:38,109 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:38,109 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:38,110 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 01:29:38,110 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:38,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 01:29:38,111 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 01:29:38,111 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-19 01:29:38,111 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-09-19 01:29:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:38,390 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-09-19 01:29:38,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 01:29:38,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-09-19 01:29:38,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:38,391 INFO L225 Difference]: With dead ends: 22 [2018-09-19 01:29:38,391 INFO L226 Difference]: Without dead ends: 16 [2018-09-19 01:29:38,393 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:29:38,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-19 01:29:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-19 01:29:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-19 01:29:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-19 01:29:38,401 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-09-19 01:29:38,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:38,402 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-19 01:29:38,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 01:29:38,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-19 01:29:38,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-19 01:29:38,403 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:38,403 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:38,403 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash -796629243, now seen corresponding path program 1 times [2018-09-19 01:29:38,404 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:38,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-19 01:29:38,404 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [18], [24], [31], [34], [36], [42], [43], [44], [46] [2018-09-19 01:29:38,406 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:38,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:38,487 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 01:29:38,487 INFO L272 AbstractInterpreter]: Visited 14 different actions 69 times. Merged at 4 different actions 28 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-09-19 01:29:38,528 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 01:29:38,544 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 01:29:38,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:38 BoogieIcfgContainer [2018-09-19 01:29:38,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:38,546 INFO L168 Benchmark]: Toolchain (without parser) took 2232.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -711.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:38,548 INFO L168 Benchmark]: CDTParser took 0.49 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. [2018-09-19 01:29:38,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.62 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. [2018-09-19 01:29:38,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:38,550 INFO L168 Benchmark]: Boogie Preprocessor took 20.35 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. [2018-09-19 01:29:38,551 INFO L168 Benchmark]: RCFGBuilder took 374.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:38,552 INFO L168 Benchmark]: TraceAbstraction took 1567.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:38,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 244.62 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 19.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.35 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 374.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1567.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 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 i, j; [L12] i = __VERIFIER_nondet_int() [L13] j = __VERIFIER_nondet_int() [L14] COND FALSE !(!(i >= 0 && j >= 0)) [L15] int x = i; [L16] int y = j; [L17] COND TRUE x != 0 [L18] x-- [L18] x-- [L19] y-- [L19] y-- [L17] COND FALSE !(x != 0) [L21] COND TRUE i == j [L22] CALL __VERIFIER_assert(y == 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 30 SDslu, 66 SDs, 0 SdLazy, 44 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9420289855072465 AbsIntWeakeningRatio, 0.5217391304347826 AbsIntAvgWeakeningVarsNumRemoved, 2.869565217391304 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 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/jm2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-38-570.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-38-570.csv Received shutdown request...