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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:06:50,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:06:50,944 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:06:50,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:06:50,957 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:06:50,959 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:06:50,960 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:06:50,962 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:06:50,964 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:06:50,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:06:50,966 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:06:50,966 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:06:50,967 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:06:50,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:06:50,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:06:50,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:06:50,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:06:50,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:06:50,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:06:50,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:06:50,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:06:50,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:06:50,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 13:06:50,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 13:06:50,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 13:06:50,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 13:06:50,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 13:06:50,987 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 13:06:50,988 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 13:06:50,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 13:06:50,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 13:06:50,991 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 13:06:50,994 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 13:06:51,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:06:51,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:06:51,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:06:51,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:06:51,011 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:06:51,012 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:06:51,012 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:06:51,012 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:06:51,012 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:06:51,013 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:06:51,013 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:06:51,013 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:06:51,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:06:51,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:06:51,014 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:06:51,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:06:51,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:06:51,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:06:51,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:06:51,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:06:51,016 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:06:51,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:06:51,016 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:06:51,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:06:51,017 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:06:51,017 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:06:51,017 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:06:51,017 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:06:51,018 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:06:51,018 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:06:51,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:06:51,018 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:06:51,018 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:06:51,019 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:06:51,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:06:51,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:06:51,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:06:51,096 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:06:51,096 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:06:51,097 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-09-15 13:06:51,478 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b7081bf/21d27a40eb8d4938b09a6340f1704c0b/FLAG0c5345d58 [2018-09-15 13:06:51,647 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:06:51,648 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-09-15 13:06:51,655 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b7081bf/21d27a40eb8d4938b09a6340f1704c0b/FLAG0c5345d58 [2018-09-15 13:06:51,672 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b7081bf/21d27a40eb8d4938b09a6340f1704c0b [2018-09-15 13:06:51,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:06:51,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:06:51,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:51,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:06:51,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:06:51,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf5491e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51, skipping insertion in model container [2018-09-15 13:06:51,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,713 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:06:51,922 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:51,940 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:06:51,946 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:51,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51 WrapperNode [2018-09-15 13:06:51,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:51,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:51,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:06:51,958 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:06:51,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:51,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:06:51,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:06:51,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:06:51,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... [2018-09-15 13:06:51,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:06:51,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:06:51,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:06:51,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:06:52,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:06:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:06:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:06:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:06:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:06:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:06:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:06:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 13:06:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 13:06:52,387 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:06:52,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:52 BoogieIcfgContainer [2018-09-15 13:06:52,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:06:52,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:06:52,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:06:52,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:06:52,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:06:51" (1/3) ... [2018-09-15 13:06:52,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edcc165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:52, skipping insertion in model container [2018-09-15 13:06:52,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:51" (2/3) ... [2018-09-15 13:06:52,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edcc165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:52, skipping insertion in model container [2018-09-15 13:06:52,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:52" (3/3) ... [2018-09-15 13:06:52,403 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call1_true-termination.i [2018-09-15 13:06:52,413 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:06:52,423 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:06:52,478 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:06:52,479 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:06:52,479 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:06:52,479 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:06:52,479 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:06:52,480 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:06:52,480 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:06:52,480 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:06:52,480 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:06:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-15 13:06:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 13:06:52,505 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:52,506 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:52,507 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash 188383829, now seen corresponding path program 1 times [2018-09-15 13:06:52,516 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:52,517 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 13:06:52,520 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [19], [23], [28], [34], [42], [45], [47], [53], [54], [55], [59] [2018-09-15 13:06:52,564 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:52,565 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:52,618 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:06:52,619 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 13:06:52,635 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:06:52,676 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 13:06:52,677 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:06:52,679 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:06:52,680 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:06:52,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 13:06:52,681 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:06:52,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 13:06:52,690 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 13:06:52,691 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 13:06:52,693 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-09-15 13:06:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:06:52,715 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2018-09-15 13:06:52,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 13:06:52,716 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-09-15 13:06:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:06:52,726 INFO L225 Difference]: With dead ends: 42 [2018-09-15 13:06:52,726 INFO L226 Difference]: Without dead ends: 21 [2018-09-15 13:06:52,729 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 13:06:52,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-15 13:06:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-09-15 13:06:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-15 13:06:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-09-15 13:06:52,771 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2018-09-15 13:06:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:06:52,772 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-09-15 13:06:52,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 13:06:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-09-15 13:06:52,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 13:06:52,774 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:52,774 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:52,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:52,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1875102229, now seen corresponding path program 1 times [2018-09-15 13:06:52,775 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:52,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 13:06:52,776 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [19], [23], [28], [34], [42], [45], [47], [53], [54], [55], [59] [2018-09-15 13:06:52,778 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:52,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:52,791 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 13:06:52,948 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 13:06:52,948 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 13:06:53,002 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 13:06:53,037 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 13:06:53,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:06:53 BoogieIcfgContainer [2018-09-15 13:06:53,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 13:06:53,045 INFO L168 Benchmark]: Toolchain (without parser) took 1360.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -744.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:53,048 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:53,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:53,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.01 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:53,052 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 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. [2018-09-15 13:06:53,053 INFO L168 Benchmark]: RCFGBuilder took 391.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:53,060 INFO L168 Benchmark]: TraceAbstraction took 653.37 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:53,073 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 268.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 19.01 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 19.19 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. * RCFGBuilder took 391.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 653.37 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: 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: [L18] unsigned int array[1000]; [L19] unsigned int index; [L21] index = 0 [L21] COND FALSE !(index < 1000) [L25] index = 0 [L25] COND TRUE index < 1000 [L26] COND FALSE !(index % 2 == 0) [L29] CALL __VERIFIER_assert(array[index] != 0) [L10] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.38461538461538464 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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/simple_array_index_value_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_13-06-53-110.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_array_index_value_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_13-06-53-110.csv Received shutdown request...