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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:07:07,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:07:07,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:07:07,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:07:07,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:07:07,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:07:07,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:07:07,637 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:07:07,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:07:07,639 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:07:07,640 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:07:07,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:07:07,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:07:07,643 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:07:07,644 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:07:07,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:07:07,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:07:07,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:07:07,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:07:07,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:07:07,652 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:07:07,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:07:07,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:07:07,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:07:07,656 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:07:07,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:07:07,658 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:07:07,659 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:07:07,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:07:07,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:07:07,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:07:07,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:07:07,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:07:07,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:07:07,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:07:07,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:07:07,664 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 11:07:07,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:07:07,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:07:07,688 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:07:07,688 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:07:07,688 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:07:07,688 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:07:07,689 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:07:07,689 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:07:07,689 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:07:07,689 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:07:07,689 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:07:07,690 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:07:07,690 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:07:07,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:07:07,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:07:07,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:07:07,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:07:07,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:07:07,692 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:07:07,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:07:07,693 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:07:07,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:07:07,693 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:07:07,693 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:07:07,693 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:07:07,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:07:07,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:07:07,694 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:07:07,694 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:07:07,694 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:07:07,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:07:07,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:07:07,695 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:07:07,695 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:07:07,695 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:07:07,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:07:07,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:07:07,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:07:07,761 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:07:07,762 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:07:07,763 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c [2018-09-19 11:07:08,105 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20945a5cd/127755157562465f89bd7be2efd45a97/FLAG128557e8f [2018-09-19 11:07:08,517 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:07:08,518 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label06_true-unreach-call.c [2018-09-19 11:07:08,546 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20945a5cd/127755157562465f89bd7be2efd45a97/FLAG128557e8f [2018-09-19 11:07:08,568 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20945a5cd/127755157562465f89bd7be2efd45a97 [2018-09-19 11:07:08,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:07:08,585 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:07:08,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:07:08,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:07:08,596 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:07:08,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:07:08" (1/1) ... [2018-09-19 11:07:08,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:08, skipping insertion in model container [2018-09-19 11:07:08,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:07:08" (1/1) ... [2018-09-19 11:07:08,615 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:07:09,655 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:07:09,675 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:07:10,087 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:07:10,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10 WrapperNode [2018-09-19 11:07:10,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:07:10,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:07:10,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:07:10,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:07:10,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:10,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:10,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:07:10,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:07:10,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:07:10,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:07:11,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (1/1) ... [2018-09-19 11:07:11,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:07:11,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:07:11,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:07:11,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:07:11,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (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 11:07:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:07:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:07:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:07:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:07:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:07:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:07:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:07:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:07:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:07:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:07:23,138 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:07:23,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:07:23 BoogieIcfgContainer [2018-09-19 11:07:23,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:07:23,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:07:23,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:07:23,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:07:23,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:07:08" (1/3) ... [2018-09-19 11:07:23,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efbce63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:07:23, skipping insertion in model container [2018-09-19 11:07:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:10" (2/3) ... [2018-09-19 11:07:23,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efbce63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:07:23, skipping insertion in model container [2018-09-19 11:07:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:07:23" (3/3) ... [2018-09-19 11:07:23,149 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label06_true-unreach-call.c [2018-09-19 11:07:23,162 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:07:23,172 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:07:23,236 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:07:23,237 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:07:23,237 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:07:23,238 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:07:23,238 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:07:23,238 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:07:23,238 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:07:23,238 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:07:23,238 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:07:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 11:07:23,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 11:07:23,305 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:07:23,307 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] [2018-09-19 11:07:23,309 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:07:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash 2116554596, now seen corresponding path program 1 times [2018-09-19 11:07:23,320 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:07:23,322 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-19 11:07:23,325 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 11:07:23,394 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:07:23,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:07:24,710 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:07:24,712 INFO L272 AbstractInterpreter]: Visited 37 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 11:07:24,734 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:07:25,316 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 77.21% of their original sizes. [2018-09-19 11:07:25,316 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:07:25,612 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:07:25,613 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:07:25,614 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:07:25,614 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:07:25,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:07:25,629 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:07:25,630 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:07:25,633 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 11:07:48,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:07:48,530 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 11:07:48,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:07:48,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-09-19 11:07:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:07:48,560 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 11:07:48,561 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 11:07:48,570 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 [2018-09-19 11:07:48,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 11:07:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 11:07:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 11:07:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 11:07:48,697 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 38 [2018-09-19 11:07:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:07:48,697 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 11:07:48,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:07:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 11:07:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-19 11:07:48,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:07:48,704 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] [2018-09-19 11:07:48,704 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:07:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash -493194566, now seen corresponding path program 1 times [2018-09-19 11:07:48,705 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:07:48,705 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-09-19 11:07:48,706 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:07:48,714 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:07:48,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:07:50,633 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:07:56,429 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:07:56,429 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 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 11:07:56,437 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:07:57,477 INFO L232 lantSequenceWeakener]: Weakened 111 states. On average, predicates are now at 75.79% of their original sizes. [2018-09-19 11:07:57,477 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:07:58,880 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:07:58,880 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:07:58,881 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:07:58,881 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:07:58,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:07:58,886 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:07:58,886 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:07:58,886 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 11:08:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:08:30,486 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 11:08:30,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 11:08:30,487 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2018-09-19 11:08:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:08:30,502 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 11:08:30,502 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 11:08:30,508 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:08:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 11:08:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 11:08:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 11:08:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 11:08:30,586 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 113 [2018-09-19 11:08:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:08:30,587 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 11:08:30,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:08:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 11:08:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-19 11:08:30,593 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:08:30,593 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] [2018-09-19 11:08:30,594 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:08:30,594 INFO L82 PathProgramCache]: Analyzing trace with hash -649908078, now seen corresponding path program 1 times [2018-09-19 11:08:30,594 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:08:30,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-09-19 11:08:30,595 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:08:30,601 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:08:30,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:08:32,880 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:08:38,466 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:08:38,467 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 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 11:08:38,506 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:08:39,552 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 75.71% of their original sizes. [2018-09-19 11:08:39,552 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:08:40,563 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:08:40,563 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:08:40,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:08:40,564 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:08:40,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:08:40,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:08:40,565 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:08:40,565 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 11:09:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:09:19,804 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 11:09:19,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:09:19,812 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-09-19 11:09:19,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:09:19,822 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 11:09:19,822 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 11:09:19,826 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:09:19,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 11:09:19,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 11:09:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 11:09:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 11:09:19,889 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 126 [2018-09-19 11:09:19,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:09:19,890 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 11:09:19,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:09:19,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 11:09:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 11:09:19,897 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:19,897 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, 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] [2018-09-19 11:09:19,897 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:19,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1098957288, now seen corresponding path program 1 times [2018-09-19 11:09:19,898 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:19,898 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 11:09:19,899 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:09:19,903 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:19,904 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:21,711 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:09:36,978 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:09:36,978 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 11:09:36,985 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:09:38,167 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 75.49% of their original sizes. [2018-09-19 11:09:38,168 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:09:38,600 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:09:38,601 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:09:38,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:09:38,601 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:09:38,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:09:38,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:09:38,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:09:38,603 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 11:10:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:10:20,585 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 11:10:20,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 11:10:20,586 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 201 [2018-09-19 11:10:20,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:10:20,607 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 11:10:20,608 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 11:10:20,612 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:10:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 11:10:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 11:10:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 11:10:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 11:10:20,704 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 201 [2018-09-19 11:10:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:10:20,705 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 11:10:20,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:10:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 11:10:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 11:10:20,711 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:10:20,711 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, 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, 2, 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 11:10:20,713 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:10:20,713 INFO L82 PathProgramCache]: Analyzing trace with hash 5058136, now seen corresponding path program 1 times [2018-09-19 11:10:20,713 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:10:20,713 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 11:10:20,714 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:10:20,724 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:10:20,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:10:22,986 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:10:39,378 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:10:39,379 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:10:39,386 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:10:40,570 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 75.48% of their original sizes. [2018-09-19 11:10:40,570 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:10:40,935 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:10:40,936 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:10:40,936 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:10:40,936 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:10:40,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:10:40,937 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:10:40,937 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:10:40,937 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 11:11:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:11:11,597 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 11:11:11,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:11:11,599 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2018-09-19 11:11:11,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:11:11,617 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 11:11:11,617 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 11:11:11,621 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:11:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 11:11:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 11:11:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 11:11:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 11:11:11,734 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 202 [2018-09-19 11:11:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:11:11,735 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 11:11:11,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:11:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 11:11:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-19 11:11:11,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:11:11,747 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:11:11,747 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:11:11,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1944742856, now seen corresponding path program 1 times [2018-09-19 11:11:11,748 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:11:11,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-09-19 11:11:11,748 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [914], [916], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:11:11,752 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:11:11,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:11:13,749 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:11:21,645 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:11:21,645 INFO L272 AbstractInterpreter]: Visited 96 different actions 371 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:11:21,655 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:11:22,692 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.48% of their original sizes. [2018-09-19 11:11:22,692 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:11:23,082 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:11:23,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:11:23,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:11:23,083 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:11:23,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:11:23,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:11:23,084 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:11:23,084 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:11:26,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 11:11:26,253 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:11:26,259 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:11:26,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:11:26 BoogieIcfgContainer [2018-09-19 11:11:26,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:11:26,260 INFO L168 Benchmark]: Toolchain (without parser) took 257679.08 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 629.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,262 INFO L168 Benchmark]: CDTParser took 0.19 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 11:11:26,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1736.16 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 291.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,265 INFO L168 Benchmark]: Boogie Preprocessor took 965.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 932.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,266 INFO L168 Benchmark]: RCFGBuilder took 11558.15 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 456.4 MB). Peak memory consumption was 456.4 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,266 INFO L168 Benchmark]: TraceAbstraction took 243119.46 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 163.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:11:26,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1736.16 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 291.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 965.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 932.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11558.15 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 456.4 MB). Peak memory consumption was 456.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243119.46 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 163.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 101). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (274 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 243.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 169.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2823 SDtfs, 14394 SDslu, 3411 SDs, 0 SdLazy, 32881 SolverSat, 2790 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 156.5s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 927 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 62.7s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9933618396047128 AbsIntWeakeningRatio, 0.1573546180159635 AbsIntAvgWeakeningVarsNumRemoved, 1048.8278221208666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1951 StatesRemovedByMinimization, 5 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/Problem17_label06_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-11-26-285.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label06_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-11-26-285.csv Completed graceful shutdown