java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/diamond_true-unreach-call2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:11,053 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:11,055 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:11,070 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:11,071 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:11,072 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:11,073 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:11,075 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:11,077 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:11,078 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:11,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:11,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:11,082 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:11,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:11,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:11,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:11,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:11,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:11,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:11,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:11,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:11,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:11,097 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:29:11,097 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:29:11,098 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:29:11,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:29:11,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:29:11,106 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:29:11,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:29:11,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:29:11,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:29:11,112 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 01:29:11,112 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 01:29:11,112 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 01:29:11,114 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 01:29:11,114 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 01:29:11,115 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:29:11,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:11,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:11,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:11,146 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:11,146 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:11,150 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:11,150 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:11,150 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:11,151 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:11,151 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:11,151 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:11,151 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:11,152 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:11,152 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:11,152 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:11,153 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:11,154 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:11,154 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:11,154 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:11,154 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:11,155 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:11,155 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:11,155 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:11,155 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:11,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:11,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:11,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:11,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:11,157 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:11,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:11,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:11,158 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:11,158 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:11,158 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:11,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:11,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:11,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:11,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:11,239 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:11,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_true-unreach-call2.i [2018-09-19 01:29:11,609 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea1b30a9/fdf23bb8f01c4c8c9b0a8fe7e03c7fa5/FLAGa20574c7c [2018-09-19 01:29:11,813 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:11,814 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_true-unreach-call2.i [2018-09-19 01:29:11,821 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea1b30a9/fdf23bb8f01c4c8c9b0a8fe7e03c7fa5/FLAGa20574c7c [2018-09-19 01:29:11,838 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea1b30a9/fdf23bb8f01c4c8c9b0a8fe7e03c7fa5 [2018-09-19 01:29:11,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:11,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:11,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:11,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:11,861 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:11,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:11" (1/1) ... [2018-09-19 01:29:11,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537cd63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:11, skipping insertion in model container [2018-09-19 01:29:11,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:11" (1/1) ... [2018-09-19 01:29:11,878 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:12,094 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:12,113 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:12,125 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:12,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12 WrapperNode [2018-09-19 01:29:12,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:12,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:12,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:12,145 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:12,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:12,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:12,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:12,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:12,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... [2018-09-19 01:29:12,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:12,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:12,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:12,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:12,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:12,793 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:12,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:12 BoogieIcfgContainer [2018-09-19 01:29:12,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:12,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:12,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:12,798 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:12,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:11" (1/3) ... [2018-09-19 01:29:12,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93a07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:12, skipping insertion in model container [2018-09-19 01:29:12,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:12" (2/3) ... [2018-09-19 01:29:12,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93a07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:12, skipping insertion in model container [2018-09-19 01:29:12,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:12" (3/3) ... [2018-09-19 01:29:12,803 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_true-unreach-call2.i [2018-09-19 01:29:12,814 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:12,824 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:12,878 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:12,879 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:12,879 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:12,879 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:12,880 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:12,880 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:12,880 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:12,880 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:12,880 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-19 01:29:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 01:29:12,907 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:12,908 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:12,910 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:12,915 INFO L82 PathProgramCache]: Analyzing trace with hash 46027330, now seen corresponding path program 1 times [2018-09-19 01:29:12,918 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:12,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 01:29:12,920 INFO L202 CegarAbsIntRunner]: [0], [4], [76], [80], [83], [85], [91], [92], [93], [95] [2018-09-19 01:29:12,974 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:12,974 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:13,051 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:13,053 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-19 01:29:13,088 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:13,139 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 01:29:13,139 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:13,178 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:13,179 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:13,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 01:29:13,180 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:13,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 01:29:13,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 01:29:13,194 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:13,197 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-09-19 01:29:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:13,433 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2018-09-19 01:29:13,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 01:29:13,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 01:29:13,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:13,445 INFO L225 Difference]: With dead ends: 42 [2018-09-19 01:29:13,445 INFO L226 Difference]: Without dead ends: 25 [2018-09-19 01:29:13,449 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 [2018-09-19 01:29:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-19 01:29:13,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-09-19 01:29:13,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-19 01:29:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2018-09-19 01:29:13,490 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 34 transitions. Word has length 10 [2018-09-19 01:29:13,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:13,490 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 34 transitions. [2018-09-19 01:29:13,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 01:29:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-09-19 01:29:13,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-19 01:29:13,492 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:13,492 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:13,492 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:13,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1592807782, now seen corresponding path program 1 times [2018-09-19 01:29:13,493 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:13,493 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-19 01:29:13,494 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [23], [29], [35], [41], [49], [53], [59], [65], [71], [80], [83], [85], [91], [92], [93], [95] [2018-09-19 01:29:13,498 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:13,498 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:13,520 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 01:29:14,296 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 01:29:14,297 INFO L272 AbstractInterpreter]: Visited 22 different actions 154 times. Merged at 13 different actions 103 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 3 variables. [2018-09-19 01:29:14,336 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 01:29:14,359 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 01:29:14,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:14 BoogieIcfgContainer [2018-09-19 01:29:14,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:14,361 INFO L168 Benchmark]: Toolchain (without parser) took 2510.69 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -686.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:14,363 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:14,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:14,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:14,366 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:14,366 INFO L168 Benchmark]: RCFGBuilder took 593.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:14,368 INFO L168 Benchmark]: TraceAbstraction took 1564.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:14,375 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 290.89 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 26.04 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 28.72 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 593.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -792.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1564.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 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: [L10] unsigned int x = 0; [L11] unsigned int y = __VERIFIER_nondet_uint(); [L12] COND TRUE x < 99 [L13] COND TRUE y % 2 == 0 [L13] x += 2 [L15] COND TRUE y % 2 == 0 [L15] x += 2 [L17] COND TRUE y % 2 == 0 [L17] x += 2 [L19] COND TRUE y % 2 == 0 [L19] x += 2 [L21] COND TRUE y % 2 == 0 [L21] x += 2 [L23] COND FALSE !(y % 2 == 0) [L24] x -= 4 [L25] COND TRUE y % 2 == 0 [L25] x += 2 [L27] COND TRUE y % 2 == 0 [L27] x += 2 [L29] COND TRUE y % 2 == 0 [L29] x += 2 [L31] COND TRUE y % 2 == 0 [L31] x += 2 [L12] COND FALSE !(x < 99) [L34] CALL __VERIFIER_assert((x % 2) == (y % 2)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. UNKNOWN Result, 1.4s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 2 SDslu, 15 SDs, 0 SdLazy, 25 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4444444444444444 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 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/diamond_true-unreach-call2.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-14-395.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diamond_true-unreach-call2.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-14-395.csv Received shutdown request...