java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 19:41:10,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:41:10,681 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:41:10,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:41:10,694 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:41:10,695 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:41:10,696 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:41:10,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:41:10,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:41:10,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:41:10,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:41:10,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:41:10,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:41:10,704 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:41:10,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:41:10,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:41:10,707 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:41:10,709 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:41:10,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:41:10,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:41:10,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:41:10,715 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:41:10,717 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-11 19:41:10,726 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 19:41:10,758 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:41:10,758 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:41:10,759 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:41:10,759 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:41:10,762 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:41:10,763 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:41:10,763 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:41:10,763 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:41:10,763 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:41:10,763 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:41:10,764 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:41:10,764 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:41:10,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:41:10,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:41:10,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:41:10,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:41:10,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:41:10,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:41:10,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:41:10,766 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:41:10,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:41:10,767 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:41:10,767 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:41:10,767 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:41:10,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:41:10,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:41:10,770 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:41:10,770 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:41:10,770 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:41:10,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:41:10,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:41:10,771 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:41:10,771 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:41:10,771 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:41:10,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:41:10,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:41:10,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:41:10,853 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:41:10,853 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:41:10,854 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-11 19:41:11,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32501876a/12cad1f6f79f4e339088e9a9f9aa8514/FLAGae8e35efe [2018-09-11 19:41:11,356 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:41:11,357 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-11 19:41:11,364 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32501876a/12cad1f6f79f4e339088e9a9f9aa8514/FLAGae8e35efe [2018-09-11 19:41:11,382 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32501876a/12cad1f6f79f4e339088e9a9f9aa8514 [2018-09-11 19:41:11,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:41:11,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:41:11,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:41:11,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:41:11,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:41:11,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6622b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11, skipping insertion in model container [2018-09-11 19:41:11,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,625 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:41:11,672 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:41:11,694 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:41:11,704 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:41:11,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11 WrapperNode [2018-09-11 19:41:11,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:41:11,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:41:11,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:41:11,719 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:41:11,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:41:11,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:41:11,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:41:11,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:41:11,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (1/1) ... [2018-09-11 19:41:11,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:41:11,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:41:11,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:41:11,757 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:41:11,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (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 [2018-09-11 19:41:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:41:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:41:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-11 19:41:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assert [2018-09-11 19:41:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:41:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:41:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:41:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:41:12,186 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:41:12,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:41:12 BoogieIcfgContainer [2018-09-11 19:41:12,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:41:12,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:41:12,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:41:12,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:41:12,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:41:11" (1/3) ... [2018-09-11 19:41:12,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2118345a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:41:12, skipping insertion in model container [2018-09-11 19:41:12,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:41:11" (2/3) ... [2018-09-11 19:41:12,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2118345a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:41:12, skipping insertion in model container [2018-09-11 19:41:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:41:12" (3/3) ... [2018-09-11 19:41:12,212 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-11 19:41:12,225 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:41:12,233 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:41:12,294 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:41:12,294 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:41:12,295 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:41:12,295 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:41:12,295 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:41:12,295 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:41:12,295 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:41:12,295 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:41:12,296 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:41:12,314 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-11 19:41:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-11 19:41:12,321 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:12,323 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:12,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:12,330 INFO L82 PathProgramCache]: Analyzing trace with hash -232606254, now seen corresponding path program 1 times [2018-09-11 19:41:12,332 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:12,333 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-11 19:41:12,335 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [54], [59], [60], [61], [63] [2018-09-11 19:41:12,387 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:12,387 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:12,428 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:41:12,430 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-11 19:41:12,444 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:41:12,491 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 66.67% of their original sizes. [2018-09-11 19:41:12,492 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:41:12,506 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:41:12,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:41:12,509 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 19:41:12,510 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:41:12,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 19:41:12,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 19:41:12,520 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:41:12,523 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-09-11 19:41:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:41:12,572 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2018-09-11 19:41:12,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 19:41:12,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-11 19:41:12,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:41:12,583 INFO L225 Difference]: With dead ends: 52 [2018-09-11 19:41:12,583 INFO L226 Difference]: Without dead ends: 23 [2018-09-11 19:41:12,587 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:41:12,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-11 19:41:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-09-11 19:41:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-11 19:41:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-11 19:41:12,633 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-11 19:41:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:41:12,634 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-11 19:41:12,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 19:41:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-11 19:41:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-11 19:41:12,635 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:12,635 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:12,636 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:12,636 INFO L82 PathProgramCache]: Analyzing trace with hash 342023696, now seen corresponding path program 1 times [2018-09-11 19:41:12,637 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:12,637 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-11 19:41:12,637 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [59], [60], [61], [63] [2018-09-11 19:41:12,639 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:12,639 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:12,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:41:12,646 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-11 19:41:12,687 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:41:12,700 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-11 19:41:12,700 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:41:12,718 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:41:12,718 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:41:12,719 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 19:41:12,719 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:41:12,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 19:41:12,721 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 19:41:12,721 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:41:12,722 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-09-11 19:41:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:41:12,791 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-09-11 19:41:12,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 19:41:12,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-11 19:41:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:41:12,793 INFO L225 Difference]: With dead ends: 24 [2018-09-11 19:41:12,793 INFO L226 Difference]: Without dead ends: 19 [2018-09-11 19:41:12,795 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 19:41:12,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-11 19:41:12,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-11 19:41:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-11 19:41:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-11 19:41:12,803 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-09-11 19:41:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:41:12,803 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-11 19:41:12,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 19:41:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-11 19:41:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-11 19:41:12,805 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:12,805 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:12,805 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:12,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1334068033, now seen corresponding path program 1 times [2018-09-11 19:41:12,806 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:12,807 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-11 19:41:12,807 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [25], [29], [33], [39], [43], [47], [59], [60], [61], [63] [2018-09-11 19:41:12,811 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:12,812 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:12,827 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:41:12,827 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-11 19:41:12,832 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:41:12,855 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-11 19:41:12,856 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:41:12,950 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:41:12,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:41:12,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-11 19:41:12,951 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:41:12,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-11 19:41:12,952 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-11 19:41:12,952 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-11 19:41:12,953 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2018-09-11 19:41:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:41:13,136 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-09-11 19:41:13,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-11 19:41:13,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-09-11 19:41:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:41:13,139 INFO L225 Difference]: With dead ends: 33 [2018-09-11 19:41:13,139 INFO L226 Difference]: Without dead ends: 21 [2018-09-11 19:41:13,139 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:41:13,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-11 19:41:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-09-11 19:41:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-11 19:41:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-09-11 19:41:13,146 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2018-09-11 19:41:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:41:13,146 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-09-11 19:41:13,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-11 19:41:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-09-11 19:41:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 19:41:13,147 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:41:13,147 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:41:13,148 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_lit_cggmp____b_true_unreach_call_true_termination_c_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:41:13,148 INFO L82 PathProgramCache]: Analyzing trace with hash -102748325, now seen corresponding path program 1 times [2018-09-11 19:41:13,148 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:41:13,148 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 19:41:13,149 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [25], [29], [33], [35], [39], [43], [47], [59], [60], [61], [63] [2018-09-11 19:41:13,151 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:41:13,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:41:13,270 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:41:13,271 INFO L272 AbstractInterpreter]: Visited 18 different actions 246 times. Merged at 8 different actions 166 times. Widened at 4 different actions 64 times. Found 16 fixpoints after 3 different actions. Largest state had 3 variables. [2018-09-11 19:41:13,290 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:41:13,308 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:41:13,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:41:13 BoogieIcfgContainer [2018-09-11 19:41:13,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:41:13,310 INFO L168 Benchmark]: Toolchain (without parser) took 1916.26 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: -751.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:13,312 INFO L168 Benchmark]: CDTParser took 0.42 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. [2018-09-11 19:41:13,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.76 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. [2018-09-11 19:41:13,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.58 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. [2018-09-11 19:41:13,314 INFO L168 Benchmark]: Boogie Preprocessor took 19.13 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. [2018-09-11 19:41:13,315 INFO L168 Benchmark]: RCFGBuilder took 435.03 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: -805.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:13,316 INFO L168 Benchmark]: TraceAbstraction took 1115.68 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: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2018-09-11 19:41:13,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 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 320.76 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 18.58 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 19.13 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 435.03 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: -805.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1115.68 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: 43.5 MB). Peak memory consumption was 43.5 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,k; [L12] i = 0 [L13] k = 9 [L14] j = -100 [L15] COND TRUE i <= 100 [L16] i = i + 1 [L17] COND TRUE j < 20 [L18] j = i + j [L17] COND FALSE !(j < 20) [L20] k = 4 [L21] COND FALSE !(k <= 3) [L15] COND FALSE !(i <= 100) [L25] CALL __VERIFIER_assert(k == 4) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 1.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 8 SDslu, 74 SDs, 0 SdLazy, 27 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 1.0 AbsIntWeakeningRatio, 0.4444444444444444 AbsIntAvgWeakeningVarsNumRemoved, 2.6666666666666665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 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/cggmp2005b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_19-41-13-334.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_19-41-13-334.csv Received shutdown request...