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/gr2006_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 03:30:48,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 03:30:48,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 03:30:48,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 03:30:48,844 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 03:30:48,845 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 03:30:48,846 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 03:30:48,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 03:30:48,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 03:30:48,857 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 03:30:48,858 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 03:30:48,859 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 03:30:48,864 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 03:30:48,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 03:30:48,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 03:30:48,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 03:30:48,871 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 03:30:48,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 03:30:48,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 03:30:48,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 03:30:48,888 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 03:30:48,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 03:30:48,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 03:30:48,915 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 [2018-08-08 03:30:48,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 03:30:48,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 03:30:48,952 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 03:30:48,952 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 03:30:48,952 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 03:30:48,953 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 03:30:48,953 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 03:30:48,953 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 03:30:48,953 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 03:30:48,953 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 03:30:48,954 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 03:30:48,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 03:30:48,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 03:30:48,956 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 03:30:48,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 03:30:48,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 03:30:48,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 03:30:48,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 03:30:48,957 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 03:30:48,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 03:30:48,957 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 03:30:48,958 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 03:30:48,958 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 03:30:48,959 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 03:30:48,959 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 03:30:48,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 03:30:48,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 03:30:48,960 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 03:30:48,960 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 03:30:48,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 03:30:48,960 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 03:30:48,961 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 03:30:48,961 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 03:30:49,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 03:30:49,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 03:30:49,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 03:30:49,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 03:30:49,047 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 03:30:49,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-08-08 03:30:49,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54c49006/7a63bac933604e4881f1b477db405982/FLAG39977295d [2018-08-08 03:30:49,575 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 03:30:49,577 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-08-08 03:30:49,586 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54c49006/7a63bac933604e4881f1b477db405982/FLAG39977295d [2018-08-08 03:30:49,615 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54c49006/7a63bac933604e4881f1b477db405982 [2018-08-08 03:30:49,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 03:30:49,630 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 03:30:49,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:49,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 03:30:49,641 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 03:30:49,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5d46e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49, skipping insertion in model container [2018-08-08 03:30:49,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,856 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 03:30:49,899 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:49,915 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 03:30:49,919 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:49,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49 WrapperNode [2018-08-08 03:30:49,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:49,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:49,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 03:30:49,933 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 03:30:49,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:49,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 03:30:49,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 03:30:49,957 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 03:30:49,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (1/1) ... [2018-08-08 03:30:49,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 03:30:49,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 03:30:49,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 03:30:49,978 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 03:30:49,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (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 [2018-08-08 03:30:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-08-08 03:30:50,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-08-08 03:30:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 03:30:50,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 03:30:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 03:30:50,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 03:30:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 03:30:50,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 03:30:50,330 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 03:30:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:50 BoogieIcfgContainer [2018-08-08 03:30:50,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 03:30:50,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 03:30:50,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 03:30:50,336 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 03:30:50,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 03:30:49" (1/3) ... [2018-08-08 03:30:50,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21243599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:50, skipping insertion in model container [2018-08-08 03:30:50,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:49" (2/3) ... [2018-08-08 03:30:50,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21243599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:50, skipping insertion in model container [2018-08-08 03:30:50,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:50" (3/3) ... [2018-08-08 03:30:50,340 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006_true-unreach-call_true-termination.c.i [2018-08-08 03:30:50,366 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 03:30:50,391 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 03:30:50,482 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 03:30:50,483 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 03:30:50,483 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 03:30:50,484 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 03:30:50,484 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 03:30:50,484 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 03:30:50,484 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 03:30:50,484 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 03:30:50,485 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 03:30:50,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-08-08 03:30:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-08-08 03:30:50,520 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:50,522 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:50,523 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:50,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1058874636, now seen corresponding path program 1 times [2018-08-08 03:30:50,533 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:50,536 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-08-08 03:30:50,539 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [38], [43], [44], [45], [47] [2018-08-08 03:30:50,602 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:50,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:50,672 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:50,673 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-08-08 03:30:50,699 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:50,758 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-08-08 03:30:50,758 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:50,775 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:50,776 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:50,776 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 03:30:50,777 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:50,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 03:30:50,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 03:30:50,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 03:30:50,790 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-08-08 03:30:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:50,869 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2018-08-08 03:30:50,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 03:30:50,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-08-08 03:30:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:50,879 INFO L225 Difference]: With dead ends: 45 [2018-08-08 03:30:50,879 INFO L226 Difference]: Without dead ends: 19 [2018-08-08 03:30:50,883 INFO L603 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 [2018-08-08 03:30:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-08-08 03:30:50,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-08-08 03:30:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-08-08 03:30:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-08-08 03:30:50,920 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2018-08-08 03:30:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:50,921 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-08-08 03:30:50,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 03:30:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-08-08 03:30:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-08-08 03:30:50,922 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:50,922 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:50,923 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:50,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1867881140, now seen corresponding path program 1 times [2018-08-08 03:30:50,923 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:50,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-08-08 03:30:50,924 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [25], [28], [34], [43], [44], [45], [47] [2018-08-08 03:30:50,926 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:50,926 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:50,943 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:50,944 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-08-08 03:30:50,965 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:50,991 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-08-08 03:30:50,992 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:51,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:51,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:51,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-08 03:30:51,046 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:51,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-08 03:30:51,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-08 03:30:51,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-08-08 03:30:51,048 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-08-08 03:30:51,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:51,141 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-08-08 03:30:51,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-08 03:30:51,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-08-08 03:30:51,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:51,142 INFO L225 Difference]: With dead ends: 23 [2018-08-08 03:30:51,143 INFO L226 Difference]: Without dead ends: 18 [2018-08-08 03:30:51,144 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-08-08 03:30:51,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-08-08 03:30:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-08-08 03:30:51,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-08-08 03:30:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-08-08 03:30:51,150 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-08-08 03:30:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:51,150 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-08-08 03:30:51,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-08 03:30:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-08-08 03:30:51,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-08-08 03:30:51,151 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:51,151 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:51,152 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:51,152 INFO L82 PathProgramCache]: Analyzing trace with hash -505819846, now seen corresponding path program 1 times [2018-08-08 03:30:51,152 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:51,152 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-08-08 03:30:51,153 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [25], [28], [34], [36], [43], [44], [45], [47] [2018-08-08 03:30:51,154 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:51,155 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:51,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:51,231 INFO L272 AbstractInterpreter]: Visited 10 different actions 40 times. Merged at 4 different actions 24 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-08-08 03:30:51,240 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:51,290 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-08-08 03:30:51,290 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:51,347 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:51,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:51,348 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-08 03:30:51,348 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:51,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-08 03:30:51,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-08 03:30:51,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-08-08 03:30:51,349 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2018-08-08 03:30:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:51,455 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-08-08 03:30:51,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-08 03:30:51,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-08-08 03:30:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:51,457 INFO L225 Difference]: With dead ends: 27 [2018-08-08 03:30:51,457 INFO L226 Difference]: Without dead ends: 22 [2018-08-08 03:30:51,458 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-08-08 03:30:51,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-08-08 03:30:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-08-08 03:30:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-08-08 03:30:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-08-08 03:30:51,465 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 17 [2018-08-08 03:30:51,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:51,466 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-08-08 03:30:51,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-08 03:30:51,466 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-08-08 03:30:51,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-08-08 03:30:51,467 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:51,467 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:51,467 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_gr_____true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:51,467 INFO L82 PathProgramCache]: Analyzing trace with hash -448561544, now seen corresponding path program 1 times [2018-08-08 03:30:51,468 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:51,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-08-08 03:30:51,468 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [25], [28], [30], [34], [36], [43], [44], [45], [47] [2018-08-08 03:30:51,470 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:51,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:51,531 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 03:30:51,531 INFO L272 AbstractInterpreter]: Visited 15 different actions 79 times. Merged at 6 different actions 40 times. Widened at 1 different actions 5 times. Found 5 fixpoints after 2 different actions. Largest state had 5 variables. [2018-08-08 03:30:51,534 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 03:30:51,549 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 03:30:51,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 03:30:51 BoogieIcfgContainer [2018-08-08 03:30:51,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 03:30:51,550 INFO L168 Benchmark]: Toolchain (without parser) took 1922.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -726.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:51,552 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-08-08 03:30:51,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.57 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. [2018-08-08 03:30:51,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 03:30:51,554 INFO L168 Benchmark]: Boogie Preprocessor took 20.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 03:30:51,555 INFO L168 Benchmark]: RCFGBuilder took 353.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:51,556 INFO L168 Benchmark]: TraceAbstraction took 1217.20 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:51,560 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.57 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 23.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 353.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1217.20 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int x,y; [L12] x = 0 [L13] y = 0 [L14] COND TRUE 1 [L15] COND TRUE x < 50 [L16] y++ [L16] y++ [L20] COND FALSE !(y < 0) [L21] x++ [L21] x++ [L14] COND TRUE 1 [L15] COND FALSE !(x < 50) [L18] y-- [L18] y-- [L20] COND TRUE y < 0 [L23] CALL __VERIFIER_assert(x == 100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 1.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 6 SDslu, 58 SDs, 0 SdLazy, 28 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 AbstIntIterations, 3 AbstIntStrong, 0.9707207207207207 AbsIntWeakeningRatio, 0.43243243243243246 AbsIntAvgWeakeningVarsNumRemoved, 0.1891891891891892 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gr2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_03-30-51-572.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gr2006_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_03-30-51-572.csv Received shutdown request...