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/Problem15_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:12:16,555 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:12:16,557 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:12:16,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:12:16,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:12:16,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:12:16,578 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:12:16,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:12:16,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:12:16,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:12:16,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:12:16,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:12:16,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:12:16,598 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:12:16,599 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:12:16,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:12:16,602 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:12:16,605 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:12:16,607 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:12:16,610 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:12:16,613 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:12:16,615 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:12:16,620 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:12:16,621 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:12:16,621 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:12:16,622 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:12:16,623 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:12:16,624 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:12:16,625 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:12:16,626 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:12:16,626 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:12:16,627 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:12:16,627 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:12:16,627 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:12:16,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:12:16,632 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:12:16,632 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 [2018-09-15 12:12:16,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:12:16,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:12:16,667 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:12:16,667 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:12:16,668 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:12:16,668 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:12:16,668 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:12:16,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:12:16,669 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:12:16,669 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:12:16,669 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:12:16,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:12:16,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:12:16,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:12:16,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:12:16,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:12:16,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:12:16,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:12:16,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:12:16,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:12:16,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:12:16,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:12:16,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:12:16,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:12:16,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:12:16,674 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:12:16,675 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:12:16,675 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:12:16,675 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:12:16,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:12:16,675 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:12:16,676 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:12:16,676 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:12:16,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:12:16,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:12:16,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:12:16,773 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:12:16,773 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:12:16,774 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label04_true-unreach-call.c [2018-09-15 12:12:17,035 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1323edefd/e62a6596509845778db34b55fa19e719/FLAG75993d8a3 [2018-09-15 12:12:17,542 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:12:17,543 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label04_true-unreach-call.c [2018-09-15 12:12:17,567 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1323edefd/e62a6596509845778db34b55fa19e719/FLAG75993d8a3 [2018-09-15 12:12:17,583 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1323edefd/e62a6596509845778db34b55fa19e719 [2018-09-15 12:12:17,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:12:17,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:12:17,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:12:17,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:12:17,607 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:12:17,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:12:17" (1/1) ... [2018-09-15 12:12:17,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796efc64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:17, skipping insertion in model container [2018-09-15 12:12:17,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:12:17" (1/1) ... [2018-09-15 12:12:17,624 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:12:18,502 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:12:18,524 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:12:18,815 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:12:18,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18 WrapperNode [2018-09-15 12:12:18,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:12:18,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:12:18,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:12:18,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:12:18,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:12:19,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:12:19,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:12:19,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:12:19,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (1/1) ... [2018-09-15 12:12:19,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:12:19,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:12:19,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:12:19,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:12:19,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (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 12:12:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:12:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:12:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:12:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:12:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:12:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:12:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:12:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:12:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:12:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:12:27,144 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:12:27,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:12:27 BoogieIcfgContainer [2018-09-15 12:12:27,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:12:27,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:12:27,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:12:27,150 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:12:27,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:12:17" (1/3) ... [2018-09-15 12:12:27,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f73a362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:12:27, skipping insertion in model container [2018-09-15 12:12:27,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:12:18" (2/3) ... [2018-09-15 12:12:27,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f73a362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:12:27, skipping insertion in model container [2018-09-15 12:12:27,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:12:27" (3/3) ... [2018-09-15 12:12:27,155 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label04_true-unreach-call.c [2018-09-15 12:12:27,165 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:12:27,174 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:12:27,232 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:12:27,233 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:12:27,233 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:12:27,233 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:12:27,234 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:12:27,234 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:12:27,234 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:12:27,234 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:12:27,234 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:12:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:12:27,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-15 12:12:27,277 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:27,278 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] [2018-09-15 12:12:27,279 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:27,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1812068772, now seen corresponding path program 1 times [2018-09-15 12:12:27,285 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:27,286 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-15 12:12:27,288 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:12:27,352 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:27,353 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:28,389 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:28,392 INFO L272 AbstractInterpreter]: Visited 37 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:12:28,412 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:28,883 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 80% of their original sizes. [2018-09-15 12:12:28,883 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:29,156 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:29,158 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:29,158 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:12:29,158 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:29,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:12:29,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:12:29,172 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:12:29,175 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:12:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:12:39,421 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:12:39,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:12:39,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-09-15 12:12:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:12:39,447 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:12:39,447 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:12:39,458 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:12:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:12:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:12:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:12:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:12:39,559 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 38 [2018-09-15 12:12:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:12:39,563 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:12:39,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:12:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:12:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-15 12:12:39,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:12:39,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:12:39,576 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:12:39,576 INFO L82 PathProgramCache]: Analyzing trace with hash -393443219, now seen corresponding path program 1 times [2018-09-15 12:12:39,576 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:12:39,577 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-15 12:12:39,577 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:12:39,585 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:12:39,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:12:42,413 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:12:55,492 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:12:55,492 INFO L272 AbstractInterpreter]: Visited 103 different actions 393 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:12:55,500 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:12:56,913 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 78.11% of their original sizes. [2018-09-15 12:12:56,913 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:12:58,864 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:12:58,865 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:12:58,865 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:12:58,865 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:12:58,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:12:58,867 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:12:58,867 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:12:58,867 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 12:13:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:18,972 INFO L93 Difference]: Finished difference Result 1771 states and 3006 transitions. [2018-09-15 12:13:18,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:13:18,972 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2018-09-15 12:13:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:18,980 INFO L225 Difference]: With dead ends: 1771 [2018-09-15 12:13:18,981 INFO L226 Difference]: Without dead ends: 1343 [2018-09-15 12:13:18,984 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 98 SyntacticMatches, 26 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:13:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2018-09-15 12:13:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1056. [2018-09-15 12:13:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-15 12:13:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1400 transitions. [2018-09-15 12:13:19,054 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1400 transitions. Word has length 134 [2018-09-15 12:13:19,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:19,055 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1400 transitions. [2018-09-15 12:13:19,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:13:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1400 transitions. [2018-09-15 12:13:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-09-15 12:13:19,063 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:19,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:13:19,063 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1402586880, now seen corresponding path program 1 times [2018-09-15 12:13:19,064 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:19,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-09-15 12:13:19,065 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:13:19,085 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:19,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:13:26,248 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:13:40,822 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:13:40,822 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:13:40,846 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:13:43,061 INFO L232 lantSequenceWeakener]: Weakened 274 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-15 12:13:43,061 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:13:44,077 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:13:44,077 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:13:44,078 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:13:44,078 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:13:44,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:13:44,080 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:13:44,080 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:13:44,081 INFO L87 Difference]: Start difference. First operand 1056 states and 1400 transitions. Second operand 12 states. [2018-09-15 12:13:59,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:13:59,135 INFO L93 Difference]: Finished difference Result 2106 states and 3372 transitions. [2018-09-15 12:13:59,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:13:59,144 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 276 [2018-09-15 12:13:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:13:59,160 INFO L225 Difference]: With dead ends: 2106 [2018-09-15 12:13:59,160 INFO L226 Difference]: Without dead ends: 1678 [2018-09-15 12:13:59,163 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 283 GetRequests, 239 SyntacticMatches, 26 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:13:59,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2018-09-15 12:13:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1675. [2018-09-15 12:13:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2018-09-15 12:13:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2037 transitions. [2018-09-15 12:13:59,236 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2037 transitions. Word has length 276 [2018-09-15 12:13:59,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:13:59,237 INFO L480 AbstractCegarLoop]: Abstraction has 1675 states and 2037 transitions. [2018-09-15 12:13:59,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:13:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2037 transitions. [2018-09-15 12:13:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-09-15 12:13:59,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:13:59,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:13:59,246 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:13:59,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1767224609, now seen corresponding path program 1 times [2018-09-15 12:13:59,247 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:13:59,247 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-09-15 12:13:59,248 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:13:59,266 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:13:59,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:14:06,086 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:14:34,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:14:34,753 INFO L272 AbstractInterpreter]: Visited 246 different actions 965 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:14:34,758 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:14:36,722 INFO L232 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-15 12:14:36,722 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:14:40,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:14:40,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:14:40,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 12:14:40,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:14:40,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 12:14:40,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 12:14:40,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 12:14:40,540 INFO L87 Difference]: Start difference. First operand 1675 states and 2037 transitions. Second operand 14 states. [2018-09-15 12:15:23,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:15:23,981 INFO L93 Difference]: Finished difference Result 3138 states and 4842 transitions. [2018-09-15 12:15:23,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:15:23,988 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 277 [2018-09-15 12:15:23,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:15:24,002 INFO L225 Difference]: With dead ends: 3138 [2018-09-15 12:15:24,003 INFO L226 Difference]: Without dead ends: 2710 [2018-09-15 12:15:24,006 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 289 GetRequests, 238 SyntacticMatches, 26 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2018-09-15 12:15:24,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2018-09-15 12:15:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2023. [2018-09-15 12:15:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2023 states. [2018-09-15 12:15:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2397 transitions. [2018-09-15 12:15:24,081 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2397 transitions. Word has length 277 [2018-09-15 12:15:24,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:15:24,082 INFO L480 AbstractCegarLoop]: Abstraction has 2023 states and 2397 transitions. [2018-09-15 12:15:24,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 12:15:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2397 transitions. [2018-09-15 12:15:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-09-15 12:15:24,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:15:24,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:15:24,088 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:15:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash 49681810, now seen corresponding path program 1 times [2018-09-15 12:15:24,089 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:15:24,089 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 314 with the following transitions: [2018-09-15 12:15:24,090 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:15:24,096 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:15:24,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:15:32,058 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:16:03,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:16:03,107 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:16:03,132 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:16:10,086 INFO L232 lantSequenceWeakener]: Weakened 311 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-15 12:16:10,086 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-15 12:16:13,754 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:16:13,762 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:16:13,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:16:13 BoogieIcfgContainer [2018-09-15 12:16:13,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:16:13,764 INFO L168 Benchmark]: Toolchain (without parser) took 236168.16 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,767 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. [2018-09-15 12:16:13,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1360.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 238.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,769 INFO L168 Benchmark]: Boogie Preprocessor took 618.96 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 895.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,771 INFO L168 Benchmark]: RCFGBuilder took 7326.90 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 296.8 MB). Peak memory consumption was 296.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,771 INFO L168 Benchmark]: TraceAbstraction took 226616.87 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -420.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 12:16:13,778 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 1360.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 238.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 618.96 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 895.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7326.90 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 296.8 MB). Peak memory consumption was 296.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226616.87 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -420.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 100). Cancelled while BasicCegarLoop was analyzing trace of length 314 with TraceHistMax 2, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 226.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 88.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1853 SDtfs, 7031 SDslu, 1766 SDs, 0 SdLazy, 17229 SolverSat, 2024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 750 GetRequests, 608 SyntacticMatches, 78 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2023occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 113.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.995768110840294 AbsIntWeakeningRatio, 0.0909970958373669 AbsIntAvgWeakeningVarsNumRemoved, 460.161665053243 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 979 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/Problem15_label04_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-16-13-802.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label04_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-16-13-802.csv Completed graceful shutdown