java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 09:33:28,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 09:33:28,240 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 09:33:28,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 09:33:28,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 09:33:28,260 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 09:33:28,261 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 09:33:28,264 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 09:33:28,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 09:33:28,267 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 09:33:28,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 09:33:28,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 09:33:28,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 09:33:28,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 09:33:28,280 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 09:33:28,281 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 09:33:28,285 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 09:33:28,289 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 09:33:28,291 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 09:33:28,295 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 09:33:28,297 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 09:33:28,299 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 09:33:28,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 09:33:28,315 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-08-08 09:33:28,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 09:33:28,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 09:33:28,343 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 09:33:28,343 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 09:33:28,343 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 09:33:28,343 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 09:33:28,344 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 09:33:28,344 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 09:33:28,344 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-08-08 09:33:28,344 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 09:33:28,344 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 09:33:28,345 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 09:33:28,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 09:33:28,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 09:33:28,346 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 09:33:28,346 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 09:33:28,346 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 09:33:28,348 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 09:33:28,348 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 09:33:28,348 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 09:33:28,349 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 09:33:28,349 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 09:33:28,349 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 09:33:28,349 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 09:33:28,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 09:33:28,350 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 09:33:28,350 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 09:33:28,350 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 09:33:28,350 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 09:33:28,351 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 09:33:28,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 09:33:28,351 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 09:33:28,351 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 09:33:28,352 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 09:33:28,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 09:33:28,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 09:33:28,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 09:33:28,434 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 09:33:28,435 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 09:33:28,436 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-08-08 09:33:28,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9c334f4/1991f7d09dd64af0b8c0785fc0b93b63/FLAG6504f7150 [2018-08-08 09:33:28,930 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 09:33:28,931 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-08-08 09:33:28,938 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9c334f4/1991f7d09dd64af0b8c0785fc0b93b63/FLAG6504f7150 [2018-08-08 09:33:28,959 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9c334f4/1991f7d09dd64af0b8c0785fc0b93b63 [2018-08-08 09:33:28,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 09:33:28,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 09:33:28,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 09:33:28,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 09:33:28,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 09:33:28,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:33:28" (1/1) ... [2018-08-08 09:33:28,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647ac60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:28, skipping insertion in model container [2018-08-08 09:33:28,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:33:28" (1/1) ... [2018-08-08 09:33:29,195 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 09:33:29,243 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:33:29,262 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 09:33:29,271 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:33:29,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29 WrapperNode [2018-08-08 09:33:29,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 09:33:29,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 09:33:29,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 09:33:29,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 09:33:29,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 09:33:29,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 09:33:29,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 09:33:29,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 09:33:29,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (1/1) ... [2018-08-08 09:33:29,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 09:33:29,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 09:33:29,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 09:33:29,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 09:33:29,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (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 09:33:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 09:33:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 09:33:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 09:33:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 09:33:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 09:33:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 09:33:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 09:33:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 09:33:29,862 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 09:33:29,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:33:29 BoogieIcfgContainer [2018-08-08 09:33:29,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 09:33:29,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 09:33:29,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 09:33:29,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 09:33:29,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 09:33:28" (1/3) ... [2018-08-08 09:33:29,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c95b4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:33:29, skipping insertion in model container [2018-08-08 09:33:29,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:33:29" (2/3) ... [2018-08-08 09:33:29,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c95b4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:33:29, skipping insertion in model container [2018-08-08 09:33:29,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:33:29" (3/3) ... [2018-08-08 09:33:29,880 INFO L112 eAbstractionObserver]: Analyzing ICFG large_const_true-unreach-call_true-termination.i [2018-08-08 09:33:29,888 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 09:33:29,896 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 09:33:29,946 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 09:33:29,947 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 09:33:29,947 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 09:33:29,947 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 09:33:29,948 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 09:33:29,948 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 09:33:29,948 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 09:33:29,948 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 09:33:29,948 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 09:33:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-08-08 09:33:29,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-08-08 09:33:29,971 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:33:29,973 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:33:29,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:33:29,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1750555721, now seen corresponding path program 1 times [2018-08-08 09:33:29,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:33:29,984 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-08-08 09:33:29,987 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [46], [48], [52], [58], [66], [67], [68], [70] [2018-08-08 09:33:30,018 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:33:30,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:33:30,093 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:33:30,095 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-08-08 09:33:30,126 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:33:30,174 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 90% of their original sizes. [2018-08-08 09:33:30,174 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:33:30,184 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:33:30,186 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:33:30,186 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 09:33:30,186 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:33:30,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 09:33:30,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 09:33:30,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 09:33:30,199 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-08-08 09:33:30,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:33:30,279 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2018-08-08 09:33:30,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 09:33:30,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-08-08 09:33:30,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:33:30,291 INFO L225 Difference]: With dead ends: 56 [2018-08-08 09:33:30,291 INFO L226 Difference]: Without dead ends: 32 [2018-08-08 09:33:30,296 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 09:33:30,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-08-08 09:33:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2018-08-08 09:33:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-08-08 09:33:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-08-08 09:33:30,337 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2018-08-08 09:33:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:33:30,337 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-08-08 09:33:30,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 09:33:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-08-08 09:33:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-08-08 09:33:30,339 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:33:30,339 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:33:30,339 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:33:30,340 INFO L82 PathProgramCache]: Analyzing trace with hash -325731125, now seen corresponding path program 1 times [2018-08-08 09:33:30,340 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:33:30,340 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-08-08 09:33:30,341 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [48], [52], [58], [66], [67], [68], [70] [2018-08-08 09:33:30,342 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 09:33:30,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:33:30,356 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 09:33:30,357 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-08-08 09:33:30,380 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 09:33:30,397 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 09:33:30,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 09:33:30 BoogieIcfgContainer [2018-08-08 09:33:30,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 09:33:30,398 INFO L168 Benchmark]: Toolchain (without parser) took 1425.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -726.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 09:33:30,401 INFO L168 Benchmark]: CDTParser took 0.19 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 09:33:30,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.59 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 09:33:30,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.58 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. [2018-08-08 09:33:30,403 INFO L168 Benchmark]: Boogie Preprocessor took 21.16 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 09:33:30,404 INFO L168 Benchmark]: RCFGBuilder took 534.02 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-08-08 09:33:30,405 INFO L168 Benchmark]: TraceAbstraction took 527.71 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2018-08-08 09:33:30,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 307.59 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 22.58 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 21.16 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 534.02 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 527.71 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int c1 = 4000; [L12] int c2 = 2000; [L13] int c3 = 10000; [L14] int n, v; [L15] int i, k, j; [L16] n = __VERIFIER_nondet_int() [L17] COND FALSE !(!(0 <= n && n < 10)) [L18] k = 0 [L19] i = 0 [L20] COND FALSE !(i < n) [L31] j = 0 [L32] COND TRUE j < n [L33] CALL __VERIFIER_assert(k > 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. UNKNOWN Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 12 SDslu, 27 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9487179487179488 AbsIntWeakeningRatio, 1.4615384615384615 AbsIntAvgWeakeningVarsNumRemoved, 0.46153846153846156 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 10 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/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_09-33-30-423.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_09-33-30-423.csv Received shutdown request...