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-industry-pattern/mod3_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:48:04,237 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:48:04,239 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:48:04,258 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:48:04,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:48:04,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:48:04,261 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:48:04,262 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:48:04,264 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:48:04,265 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:48:04,266 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:48:04,266 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:48:04,267 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:48:04,268 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:48:04,269 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:48:04,270 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:48:04,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:48:04,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:48:04,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:48:04,277 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:48:04,278 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:48:04,279 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:48:04,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:48:04,282 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:48:04,283 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:48:04,284 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:48:04,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:48:04,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:48:04,287 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:48:04,288 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:48:04,288 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:48:04,289 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:48:04,289 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:48:04,289 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:48:04,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:48:04,291 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:48:04,292 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 [2018-09-15 15:48:04,307 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:48:04,307 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:48:04,308 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:48:04,309 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:48:04,309 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:48:04,309 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:48:04,309 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:48:04,309 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:48:04,310 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-15 15:48:04,310 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:48:04,310 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:48:04,310 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 15:48:04,311 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:48:04,314 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:48:04,315 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:48:04,315 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:48:04,315 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:48:04,315 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:48:04,316 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:48:04,316 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:48:04,316 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:48:04,316 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:48:04,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:48:04,319 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:48:04,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:48:04,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:48:04,319 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:48:04,319 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:48:04,320 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:48:04,320 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:48:04,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:48:04,320 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:48:04,320 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:48:04,321 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:48:04,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:48:04,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:48:04,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:48:04,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:48:04,387 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:48:04,388 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c [2018-09-15 15:48:04,778 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66633f94/e4b30abd0f41402aabd1bc9d15a890d7/FLAGcdd6f7b04 [2018-09-15 15:48:04,939 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:48:04,940 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c [2018-09-15 15:48:04,947 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66633f94/e4b30abd0f41402aabd1bc9d15a890d7/FLAGcdd6f7b04 [2018-09-15 15:48:04,963 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66633f94/e4b30abd0f41402aabd1bc9d15a890d7 [2018-09-15 15:48:04,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:48:04,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:48:04,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:48:04,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:48:04,984 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:48:04,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:48:04" (1/1) ... [2018-09-15 15:48:04,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2622ab46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:04, skipping insertion in model container [2018-09-15 15:48:04,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:48:04" (1/1) ... [2018-09-15 15:48:05,000 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:48:05,202 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:48:05,221 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:48:05,230 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:48:05,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05 WrapperNode [2018-09-15 15:48:05,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:48:05,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:48:05,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:48:05,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:48:05,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:48:05,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:48:05,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:48:05,273 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:48:05,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (1/1) ... [2018-09-15 15:48:05,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:48:05,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:48:05,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:48:05,293 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:48:05,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (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 15:48:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:48:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:48:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:48:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:48:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:48:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:48:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 15:48:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 15:48:05,783 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:48:05,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:48:05 BoogieIcfgContainer [2018-09-15 15:48:05,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:48:05,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:48:05,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:48:05,802 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:48:05,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:48:04" (1/3) ... [2018-09-15 15:48:05,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b4c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:48:05, skipping insertion in model container [2018-09-15 15:48:05,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:48:05" (2/3) ... [2018-09-15 15:48:05,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b4c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:48:05, skipping insertion in model container [2018-09-15 15:48:05,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:48:05" (3/3) ... [2018-09-15 15:48:05,807 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-09-15 15:48:05,816 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:48:05,823 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:48:05,872 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:48:05,873 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:48:05,873 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:48:05,873 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:48:05,874 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:48:05,874 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:48:05,874 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:48:05,874 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:48:05,874 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:48:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-15 15:48:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 15:48:05,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:48:05,902 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:48:05,903 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:48:05,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1560473904, now seen corresponding path program 1 times [2018-09-15 15:48:05,911 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:48:05,913 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 15:48:05,915 INFO L202 CegarAbsIntRunner]: [0], [4], [33], [37], [44], [47], [49], [55], [56], [57], [59] [2018-09-15 15:48:05,955 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:48:05,956 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:48:06,010 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:48:06,012 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 15:48:06,059 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:48:06,098 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 15:48:06,099 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:48:06,106 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:48:06,108 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:48:06,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 15:48:06,108 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:48:06,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 15:48:06,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 15:48:06,118 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 15:48:06,121 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-09-15 15:48:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:48:06,222 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2018-09-15 15:48:06,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 15:48:06,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 15:48:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:48:06,233 INFO L225 Difference]: With dead ends: 47 [2018-09-15 15:48:06,233 INFO L226 Difference]: Without dead ends: 23 [2018-09-15 15:48:06,236 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 15:48:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-15 15:48:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2018-09-15 15:48:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-15 15:48:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-09-15 15:48:06,277 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2018-09-15 15:48:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:48:06,277 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-09-15 15:48:06,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 15:48:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-09-15 15:48:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 15:48:06,279 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:48:06,279 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:48:06,279 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:48:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash -109903733, now seen corresponding path program 1 times [2018-09-15 15:48:06,280 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:48:06,280 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 15:48:06,281 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [15], [18], [37], [44], [47], [49], [55], [56], [57], [59] [2018-09-15 15:48:06,282 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:48:06,282 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:48:06,345 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 15:48:06,346 INFO L272 AbstractInterpreter]: Visited 15 different actions 21 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 3 variables. [2018-09-15 15:48:06,386 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 15:48:06,402 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 15:48:06,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:48:06 BoogieIcfgContainer [2018-09-15 15:48:06,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:48:06,404 INFO L168 Benchmark]: Toolchain (without parser) took 1430.12 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -730.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:48:06,405 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:48:06,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.93 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 15:48:06,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.63 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 15:48:06,408 INFO L168 Benchmark]: Boogie Preprocessor took 20.34 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 15:48:06,408 INFO L168 Benchmark]: RCFGBuilder took 497.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-15 15:48:06,409 INFO L168 Benchmark]: TraceAbstraction took 609.31 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2018-09-15 15:48:06,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.93 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 22.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.34 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 497.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 609.31 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: 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: [L13] unsigned int x; [L14] unsigned int y = 1; [L16] COND TRUE __VERIFIER_nondet_int() [L17] COND TRUE x % 3 == 1 [L18] x += 2 [L18] y = 0 [L16] COND FALSE !(__VERIFIER_nondet_int()) [L30] COND TRUE y == 0 [L31] CALL __VERIFIER_assert(x % 3 == 0) [L7] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 9 SDslu, 21 SDs, 0 SdLazy, 5 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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/mod3_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-48-06-428.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/mod3_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-48-06-428.csv Received shutdown request...