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_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:18:24,559 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:18:24,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:18:24,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:18:24,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:18:24,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:18:24,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:18:24,580 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:18:24,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:18:24,582 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:18:24,583 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:18:24,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:18:24,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:18:24,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:18:24,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:18:24,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:18:24,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:18:24,590 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:18:24,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:18:24,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:18:24,595 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:18:24,596 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:18:24,599 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:18:24,599 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:18:24,599 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:18:24,600 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:18:24,601 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:18:24,602 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:18:24,603 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:18:24,604 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:18:24,605 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:18:24,605 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:18:24,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:18:24,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:18:24,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:18:24,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:18:24,608 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 12:18:24,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:18:24,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:18:24,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:18:24,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:18:24,633 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:18:24,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:18:24,633 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:18:24,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:18:24,634 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:18:24,634 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:18:24,634 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:18:24,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:18:24,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:18:24,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:18:24,636 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:18:24,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:18:24,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:18:24,637 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:18:24,637 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:18:24,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:18:24,637 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:18:24,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:18:24,639 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:18:24,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:18:24,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:18:24,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:18:24,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:18:24,640 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:18:24,640 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:18:24,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:18:24,640 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:18:24,641 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:18:24,641 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:18:24,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:18:24,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:18:24,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:18:24,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:18:24,725 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:18:24,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label44_true-unreach-call.c [2018-09-15 12:18:25,071 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3b53a65/5a19977aa23646de9c8e18eb5eb352e0/FLAGc09ef35cf [2018-09-15 12:18:25,429 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:18:25,430 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label44_true-unreach-call.c [2018-09-15 12:18:25,454 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3b53a65/5a19977aa23646de9c8e18eb5eb352e0/FLAGc09ef35cf [2018-09-15 12:18:25,475 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3b53a65/5a19977aa23646de9c8e18eb5eb352e0 [2018-09-15 12:18:25,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:18:25,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:18:25,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:18:25,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:18:25,506 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:18:25,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:18:25" (1/1) ... [2018-09-15 12:18:25,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dbb45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:25, skipping insertion in model container [2018-09-15 12:18:25,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:18:25" (1/1) ... [2018-09-15 12:18:25,524 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:18:26,354 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:18:26,373 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:18:26,653 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:18:26,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26 WrapperNode [2018-09-15 12:18:26,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:18:26,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:18:26,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:18:26,804 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:18:26,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:26,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:18:27,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:18:27,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:18:27,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:18:27,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (1/1) ... [2018-09-15 12:18:27,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:18:27,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:18:27,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:18:27,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:18:27,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (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 12:18:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:18:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:18:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:18:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:18:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:18:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:18:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:18:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:18:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:18:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:18:37,388 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:18:37,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:18:37 BoogieIcfgContainer [2018-09-15 12:18:37,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:18:37,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:18:37,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:18:37,395 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:18:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:18:25" (1/3) ... [2018-09-15 12:18:37,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:18:37, skipping insertion in model container [2018-09-15 12:18:37,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:18:26" (2/3) ... [2018-09-15 12:18:37,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:18:37, skipping insertion in model container [2018-09-15 12:18:37,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:18:37" (3/3) ... [2018-09-15 12:18:37,399 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label44_true-unreach-call.c [2018-09-15 12:18:37,408 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:18:37,416 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:18:37,472 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:18:37,473 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:18:37,473 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:18:37,474 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:18:37,474 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:18:37,474 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:18:37,474 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:18:37,474 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:18:37,474 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:18:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:18:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-09-15 12:18:37,519 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:18:37,520 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:18:37,521 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:18:37,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2074557279, now seen corresponding path program 1 times [2018-09-15 12:18:37,529 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:18:37,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 74 with the following transitions: [2018-09-15 12:18:37,532 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:18:37,608 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:18:37,608 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:18:39,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:18:39,650 INFO L272 AbstractInterpreter]: Visited 72 different actions 72 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:18:39,702 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:18:40,575 INFO L232 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 80.9% of their original sizes. [2018-09-15 12:18:40,575 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:18:40,915 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:18:40,917 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:18:40,917 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:18:40,917 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:18:40,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:18:40,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:18:40,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:18:40,934 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:18:53,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:18:53,912 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:18:53,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:18:53,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2018-09-15 12:18:53,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:18:53,934 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:18:53,935 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:18:53,947 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:18:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:18:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:18:54,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:18:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:18:54,056 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 73 [2018-09-15 12:18:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:18:54,057 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:18:54,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:18:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:18:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-09-15 12:18:54,066 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:18:54,066 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:18:54,067 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:18:54,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1203013737, now seen corresponding path program 1 times [2018-09-15 12:18:54,067 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:18:54,068 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 170 with the following transitions: [2018-09-15 12:18:54,068 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [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 12:18:54,075 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:18:54,075 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:18:56,603 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:19:07,258 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:19:07,258 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 12:19:07,266 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:19:09,052 INFO L232 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 78.89% of their original sizes. [2018-09-15 12:19:09,053 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:19:11,014 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:19:11,015 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:19:11,015 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:19:11,015 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:19:11,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:19:11,017 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:19:11,017 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:19:11,017 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 12 states. [2018-09-15 12:19:31,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:19:31,524 INFO L93 Difference]: Finished difference Result 1798 states and 3052 transitions. [2018-09-15 12:19:31,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 12:19:31,525 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 169 [2018-09-15 12:19:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:19:31,538 INFO L225 Difference]: With dead ends: 1798 [2018-09-15 12:19:31,539 INFO L226 Difference]: Without dead ends: 1370 [2018-09-15 12:19:31,545 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 128 SyntacticMatches, 30 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-15 12:19:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-09-15 12:19:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1365. [2018-09-15 12:19:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2018-09-15 12:19:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1724 transitions. [2018-09-15 12:19:31,649 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1724 transitions. Word has length 169 [2018-09-15 12:19:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:19:31,650 INFO L480 AbstractCegarLoop]: Abstraction has 1365 states and 1724 transitions. [2018-09-15 12:19:31,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:19:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1724 transitions. [2018-09-15 12:19:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-09-15 12:19:31,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:19:31,662 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:19:31,662 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:19:31,663 INFO L82 PathProgramCache]: Analyzing trace with hash -440805916, now seen corresponding path program 1 times [2018-09-15 12:19:31,663 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:19:31,663 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-09-15 12:19:31,664 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [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 12:19:31,680 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:19:31,680 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:19:38,880 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:19:52,886 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:19:52,886 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 12:19:52,914 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:19:55,343 INFO L232 lantSequenceWeakener]: Weakened 309 states. On average, predicates are now at 78.15% of their original sizes. [2018-09-15 12:19:55,344 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:19:56,581 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:19:56,582 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:19:56,582 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:19:56,582 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:19:56,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:19:56,584 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:19:56,585 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:19:56,585 INFO L87 Difference]: Start difference. First operand 1365 states and 1724 transitions. Second operand 12 states. [2018-09-15 12:20:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:20:25,574 INFO L93 Difference]: Finished difference Result 2415 states and 3696 transitions. [2018-09-15 12:20:25,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:20:25,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 311 [2018-09-15 12:20:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:20:25,594 INFO L225 Difference]: With dead ends: 2415 [2018-09-15 12:20:25,595 INFO L226 Difference]: Without dead ends: 1987 [2018-09-15 12:20:25,599 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 318 GetRequests, 239 SyntacticMatches, 61 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:20:25,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2018-09-15 12:20:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1984. [2018-09-15 12:20:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-09-15 12:20:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2361 transitions. [2018-09-15 12:20:25,680 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2361 transitions. Word has length 311 [2018-09-15 12:20:25,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:20:25,681 INFO L480 AbstractCegarLoop]: Abstraction has 1984 states and 2361 transitions. [2018-09-15 12:20:25,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:20:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2361 transitions. [2018-09-15 12:20:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-09-15 12:20:25,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:20:25,690 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:20:25,690 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:20:25,690 INFO L82 PathProgramCache]: Analyzing trace with hash -852658235, now seen corresponding path program 1 times [2018-09-15 12:20:25,691 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:20:25,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 313 with the following transitions: [2018-09-15 12:20:25,692 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [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 12:20:25,702 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:20:25,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:20:32,026 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:20:56,688 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:20:56,688 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 12:20:56,695 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:20:59,162 INFO L232 lantSequenceWeakener]: Weakened 310 states. On average, predicates are now at 78.14% of their original sizes. [2018-09-15 12:20:59,163 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:21:01,030 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:21:01,031 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:21:01,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 12:21:01,031 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:21:01,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 12:21:01,032 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 12:21:01,032 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-15 12:21:01,033 INFO L87 Difference]: Start difference. First operand 1984 states and 2361 transitions. Second operand 16 states. [2018-09-15 12:21:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:21:36,334 INFO L93 Difference]: Finished difference Result 3569 states and 5393 transitions. [2018-09-15 12:21:36,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-15 12:21:36,335 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 312 [2018-09-15 12:21:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:21:36,352 INFO L225 Difference]: With dead ends: 3569 [2018-09-15 12:21:36,353 INFO L226 Difference]: Without dead ends: 3141 [2018-09-15 12:21:36,358 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 330 GetRequests, 267 SyntacticMatches, 30 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=264, Invalid=926, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 12:21:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2018-09-15 12:21:36,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2914. [2018-09-15 12:21:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-09-15 12:21:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3327 transitions. [2018-09-15 12:21:36,456 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3327 transitions. Word has length 312 [2018-09-15 12:21:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:21:36,457 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3327 transitions. [2018-09-15 12:21:36,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 12:21:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3327 transitions. [2018-09-15 12:21:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-09-15 12:21:36,464 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:21:36,465 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:21:36,465 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:21:36,465 INFO L82 PathProgramCache]: Analyzing trace with hash -100143820, now seen corresponding path program 1 times [2018-09-15 12:21:36,465 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:21:36,466 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 349 with the following transitions: [2018-09-15 12:21:36,466 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [557], [559], [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 12:21:36,475 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:21:36,476 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:21:43,516 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:22:12,321 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:22:12,322 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 12:22:12,328 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:22:19,742 INFO L232 lantSequenceWeakener]: Weakened 346 states. On average, predicates are now at 78.05% of their original sizes. [2018-09-15 12:22:19,743 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:22:22,522 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:22:22,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:22:22,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-15 12:22:22,523 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:22:22,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-15 12:22:22,524 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-15 12:22:22,524 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:22:22,525 INFO L87 Difference]: Start difference. First operand 2914 states and 3327 transitions. Second operand 18 states. Received shutdown request... [2018-09-15 12:22:36,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:22:36,011 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:22:36,019 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:22:36,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:22:36 BoogieIcfgContainer [2018-09-15 12:22:36,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:22:36,020 INFO L168 Benchmark]: Toolchain (without parser) took 250530.87 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -970.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-15 12:22:36,022 INFO L168 Benchmark]: CDTParser took 0.18 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 12:22:36,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1307.17 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:22:36,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.15 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 12:22:36,024 INFO L168 Benchmark]: Boogie Preprocessor took 772.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:22:36,025 INFO L168 Benchmark]: RCFGBuilder took 9480.83 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: 290.3 MB). Peak memory consumption was 290.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:22:36,026 INFO L168 Benchmark]: TraceAbstraction took 238627.71 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -416.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 12:22:36,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 1307.17 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.15 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 772.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9480.83 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: 290.3 MB). Peak memory consumption was 290.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238627.71 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -416.3 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: 205]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 205). Cancelled while BasicCegarLoop was constructing difference of abstraction (2914states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (2193 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 238.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 111.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2060 SDtfs, 8822 SDslu, 2584 SDs, 0 SdLazy, 22446 SolverSat, 2243 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 101.3s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1257 GetRequests, 972 SyntacticMatches, 182 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2342 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2914occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 103.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9963811742533307 AbsIntWeakeningRatio, 0.07781456953642384 AbsIntAvgWeakeningVarsNumRemoved, 494.43129139072846 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 237 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_label44_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-22-36-044.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label44_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-22-36-044.csv Completed graceful shutdown