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/eca-rers2012/Problem12_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:48:31,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:48:31,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:48:31,237 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:48:31,238 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:48:31,239 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:48:31,240 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:48:31,242 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:48:31,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:48:31,244 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:48:31,245 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:48:31,246 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:48:31,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:48:31,248 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:48:31,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:48:31,252 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:48:31,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:48:31,255 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:48:31,257 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:48:31,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:48:31,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:48:31,260 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:48:31,263 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 03:48:31,270 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:48:31,270 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:48:31,271 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:48:31,272 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:48:31,272 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 03:48:31,308 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:48:31,308 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:48:31,309 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:48:31,309 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:48:31,309 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:48:31,310 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:48:31,310 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:48:31,311 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:48:31,311 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:48:31,311 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:48:31,311 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:48:31,311 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:48:31,312 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:48:31,312 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:48:31,313 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:48:31,313 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:48:31,313 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:48:31,314 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:48:31,314 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:48:31,314 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:48:31,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:48:31,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:48:31,315 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:48:31,315 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:48:31,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:48:31,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:48:31,316 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:48:31,317 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:48:31,317 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:48:31,317 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:48:31,317 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:48:31,318 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:48:31,318 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:48:31,318 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:48:31,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:48:31,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:48:31,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:48:31,406 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:48:31,407 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:48:31,407 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label26_true-unreach-call.c [2018-09-19 03:48:31,759 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16f304a3/483b4f52178c477f9cc9d8d3956ef134/FLAG89ae9077e [2018-09-19 03:48:32,215 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:48:32,216 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label26_true-unreach-call.c [2018-09-19 03:48:32,245 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16f304a3/483b4f52178c477f9cc9d8d3956ef134/FLAG89ae9077e [2018-09-19 03:48:32,261 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16f304a3/483b4f52178c477f9cc9d8d3956ef134 [2018-09-19 03:48:32,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:48:32,277 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:48:32,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:48:32,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:48:32,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:48:32,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:48:32" (1/1) ... [2018-09-19 03:48:32,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41bae521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:32, skipping insertion in model container [2018-09-19 03:48:32,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:48:32" (1/1) ... [2018-09-19 03:48:32,304 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:48:33,567 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:48:33,590 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:48:34,217 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:48:34,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34 WrapperNode [2018-09-19 03:48:34,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:48:34,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:48:34,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:48:34,453 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:48:34,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:34,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:34,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:48:34,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:48:34,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:48:34,689 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:48:35,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (1/1) ... [2018-09-19 03:48:35,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:48:35,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:48:35,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:48:35,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:48:35,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (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 03:48:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:48:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:48:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 03:48:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 03:48:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 03:48:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 03:48:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 03:48:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 03:48:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:48:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:48:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:48:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:48:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:48:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:48:46,312 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:48:46,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:48:46 BoogieIcfgContainer [2018-09-19 03:48:46,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:48:46,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:48:46,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:48:46,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:48:46,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:48:32" (1/3) ... [2018-09-19 03:48:46,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133abd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:48:46, skipping insertion in model container [2018-09-19 03:48:46,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:48:34" (2/3) ... [2018-09-19 03:48:46,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133abd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:48:46, skipping insertion in model container [2018-09-19 03:48:46,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:48:46" (3/3) ... [2018-09-19 03:48:46,321 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label26_true-unreach-call.c [2018-09-19 03:48:46,331 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:48:46,344 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:48:46,422 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:48:46,423 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:48:46,423 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:48:46,423 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:48:46,423 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:48:46,423 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:48:46,424 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:48:46,424 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:48:46,424 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:48:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 03:48:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-19 03:48:46,473 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:48:46,474 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:48:46,475 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:48:46,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1342118596, now seen corresponding path program 1 times [2018-09-19 03:48:46,482 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:48:46,483 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-09-19 03:48:46,486 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2183], [2185], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 03:48:46,558 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:48:46,558 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:48:48,751 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:48:48,752 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 03:48:48,777 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:48:49,538 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-19 03:48:49,538 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:48:49,871 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:48:49,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:48:49,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:48:49,873 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:48:49,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:48:49,885 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:48:49,886 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:48:49,888 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 03:49:10,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:49:10,434 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 03:49:10,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:49:10,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-09-19 03:49:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:49:10,487 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 03:49:10,487 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 03:49:10,504 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:49:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 03:49:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 03:49:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 03:49:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 03:49:10,730 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 52 [2018-09-19 03:49:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:49:10,731 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 03:49:10,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:49:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 03:49:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-19 03:49:10,740 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:49:10,740 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:49:10,741 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:49:10,741 INFO L82 PathProgramCache]: Analyzing trace with hash 232072350, now seen corresponding path program 1 times [2018-09-19 03:49:10,741 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:49:10,741 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-09-19 03:49:10,742 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2183], [2185], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:49:10,748 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:49:10,749 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:49:16,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:49:16,090 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:49:16,098 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:49:17,283 INFO L232 lantSequenceWeakener]: Weakened 126 states. On average, predicates are now at 76.16% of their original sizes. [2018-09-19 03:49:17,283 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:49:18,088 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:49:18,089 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:49:18,089 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:49:18,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:49:18,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:49:18,092 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:49:18,092 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:49:18,092 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 03:50:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:50:05,246 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 03:50:05,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 03:50:05,249 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 128 [2018-09-19 03:50:05,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:50:05,272 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 03:50:05,272 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 03:50:05,279 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 03:50:05,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 03:50:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 03:50:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 03:50:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 03:50:05,413 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 128 [2018-09-19 03:50:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:50:05,414 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 03:50:05,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:50:05,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 03:50:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-09-19 03:50:05,428 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:50:05,428 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:50:05,432 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:50:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1136410638, now seen corresponding path program 1 times [2018-09-19 03:50:05,432 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:50:05,432 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-09-19 03:50:05,433 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2183], [2185], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:50:05,445 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:50:05,446 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:50:10,829 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:50:22,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:50:22,819 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:50:22,837 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:50:24,410 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 75.75% of their original sizes. [2018-09-19 03:50:24,411 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:50:24,928 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:50:24,928 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:50:24,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:50:24,929 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:50:24,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:50:24,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:50:24,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:50:24,930 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 03:51:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:51:00,920 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 03:51:00,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:51:00,932 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 198 [2018-09-19 03:51:00,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:51:00,958 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 03:51:00,958 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 03:51:00,962 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 03:51:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 03:51:01,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 03:51:01,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 03:51:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 03:51:01,100 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 198 [2018-09-19 03:51:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:51:01,101 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 03:51:01,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:51:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 03:51:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 03:51:01,104 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:51:01,105 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:51:01,105 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:51:01,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1326592726, now seen corresponding path program 1 times [2018-09-19 03:51:01,106 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:51:01,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 03:51:01,106 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2183], [2185], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:51:01,113 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:51:01,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:51:06,307 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:51:17,597 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:51:17,598 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:51:17,606 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:51:18,977 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 75.73% of their original sizes. [2018-09-19 03:51:18,978 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:51:19,577 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:51:19,577 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:51:19,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:51:19,577 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:51:19,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:51:19,578 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:51:19,579 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:51:19,579 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 03:52:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:52:01,258 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 03:52:01,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 03:52:01,268 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2018-09-19 03:52:01,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:52:01,293 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 03:52:01,293 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 03:52:01,297 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 03:52:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 03:52:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 03:52:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 03:52:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 03:52:01,451 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 202 [2018-09-19 03:52:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:52:01,452 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 03:52:01,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:52:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 03:52:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-09-19 03:52:01,458 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:52:01,459 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:52:01,459 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:52:01,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1548716756, now seen corresponding path program 1 times [2018-09-19 03:52:01,460 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:52:01,460 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-09-19 03:52:01,460 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2183], [2185], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:52:01,472 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:52:01,472 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:52:08,188 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:52:22,497 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:52:22,497 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 03:52:22,508 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:52:24,361 INFO L232 lantSequenceWeakener]: Weakened 272 states. On average, predicates are now at 75.57% of their original sizes. [2018-09-19 03:52:24,362 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:52:25,105 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:52:25,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:52:25,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 03:52:25,106 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:52:25,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 03:52:25,106 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 03:52:25,106 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-19 03:52:25,107 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 16 states. Received shutdown request... [2018-09-19 03:52:42,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 03:52:42,955 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:52:42,960 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:52:42,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:52:42 BoogieIcfgContainer [2018-09-19 03:52:42,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:52:42,962 INFO L168 Benchmark]: Toolchain (without parser) took 250687.67 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.4 GB). Peak memory consumption was 342.9 MB. Max. memory is 7.1 GB. [2018-09-19 03:52:42,963 INFO L168 Benchmark]: CDTParser took 0.20 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 03:52:42,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2174.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:52:42,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 235.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:52:42,966 INFO L168 Benchmark]: Boogie Preprocessor took 888.26 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 952.6 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-19 03:52:42,967 INFO L168 Benchmark]: RCFGBuilder took 10735.60 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 666.2 MB). Peak memory consumption was 666.2 MB. Max. memory is 7.1 GB. [2018-09-19 03:52:42,968 INFO L168 Benchmark]: TraceAbstraction took 236647.39 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.9 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:52:42,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2174.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 235.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 888.26 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 952.6 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10735.60 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 666.2 MB). Peak memory consumption was 666.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236647.39 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.9 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 147). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 23 states, 16 states before enhancement), while ReachableStatesComputation was computing reachable states (2540 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 236.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 163.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3552 SDtfs, 17404 SDslu, 2536 SDs, 0 SdLazy, 46683 SolverSat, 4978 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 147.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 905 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 62.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9947466098879527 AbsIntWeakeningRatio, 0.12367491166077739 AbsIntAvgWeakeningVarsNumRemoved, 1071.9505300353358 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 112 StatesRemovedByMinimization, 4 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: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label26_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-52-42-987.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label26_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-52-42-987.csv Completed graceful shutdown