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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:35:38,670 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:35:38,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:35:38,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:35:38,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:35:38,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:35:38,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:35:38,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:35:38,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:35:38,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:35:38,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:35:38,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:35:38,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:35:38,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:35:38,696 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:35:38,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:35:38,698 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:35:38,700 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:35:38,702 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:35:38,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:35:38,705 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:35:38,706 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:35:38,709 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:35:38,709 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:35:38,709 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:35:38,710 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:35:38,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:35:38,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:35:38,713 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:35:38,715 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:35:38,715 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:35:38,716 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 09:35:38,719 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:35:38,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:35:38,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:35:38,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:35:38,736 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:35:38,736 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:35:38,737 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:35:38,737 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:35:38,737 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:35:38,737 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:35:38,738 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:35:38,739 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:35:38,739 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:35:38,739 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:35:38,740 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:35:38,741 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:35:38,741 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:35:38,741 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:35:38,741 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:35:38,743 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:35:38,743 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:35:38,743 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:35:38,743 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:35:38,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:35:38,744 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:35:38,744 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:35:38,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:35:38,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:35:38,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:35:38,745 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:35:38,745 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:35:38,746 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:35:38,746 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:35:38,746 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:35:38,746 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:35:38,746 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:35:38,748 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:35:38,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:35:38,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:35:38,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:35:38,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:35:38,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:35:38,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-07 09:35:38,901 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd692e58f/1a3ad9ee01ca4143a04ee02dd182a988/FLAGe5b0573b5 [2018-11-07 09:35:39,668 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:35:39,669 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-07 09:35:39,693 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd692e58f/1a3ad9ee01ca4143a04ee02dd182a988/FLAGe5b0573b5 [2018-11-07 09:35:39,708 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd692e58f/1a3ad9ee01ca4143a04ee02dd182a988 [2018-11-07 09:35:39,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:35:39,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:35:39,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:35:39,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:35:39,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:35:39,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:35:39" (1/1) ... [2018-11-07 09:35:39,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fd05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:39, skipping insertion in model container [2018-11-07 09:35:39,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:35:39" (1/1) ... [2018-11-07 09:35:39,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:35:39,884 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:35:41,078 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:35:41,083 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:35:41,523 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:35:41,556 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:35:41,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41 WrapperNode [2018-11-07 09:35:41,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:35:41,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:35:41,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:35:41,558 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:35:41,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:41,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:41,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:35:41,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:35:41,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:35:41,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:35:41,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:41,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:41,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:41,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:42,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:42,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:42,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (1/1) ... [2018-11-07 09:35:42,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:35:42,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:35:42,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:35:42,111 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:35:42,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (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 [2018-11-07 09:35:42,184 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:35:42,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:35:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:35:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:35:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:35:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:35:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:35:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:35:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:35:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:35:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:35:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:35:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:35:49,439 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:35:49,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:35:49 BoogieIcfgContainer [2018-11-07 09:35:49,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:35:49,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:35:49,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:35:49,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:35:49,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:35:39" (1/3) ... [2018-11-07 09:35:49,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4641ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:35:49, skipping insertion in model container [2018-11-07 09:35:49,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:35:41" (2/3) ... [2018-11-07 09:35:49,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4641ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:35:49, skipping insertion in model container [2018-11-07 09:35:49,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:35:49" (3/3) ... [2018-11-07 09:35:49,449 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label18_true-unreach-call.c [2018-11-07 09:35:49,459 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:35:49,468 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:35:49,488 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:35:49,539 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:35:49,539 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:35:49,539 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:35:49,540 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:35:49,540 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:35:49,540 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:35:49,540 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:35:49,540 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:35:49,582 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 09:35:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-07 09:35:49,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:35:49,594 INFO L375 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] [2018-11-07 09:35:49,596 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:35:49,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:35:49,603 INFO L82 PathProgramCache]: Analyzing trace with hash -502294996, now seen corresponding path program 1 times [2018-11-07 09:35:49,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:35:49,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:35:49,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:35:49,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:35:49,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:35:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:35:50,077 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:35:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:35:50,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:35:50,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:35:50,225 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:35:50,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:35:50,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:35:50,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:35:50,252 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 09:35:56,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:35:56,692 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 09:35:56,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:35:56,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-07 09:35:56,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:35:56,728 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 09:35:56,729 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 09:35:56,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:35:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 09:35:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 09:35:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 09:35:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-07 09:35:56,881 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 64 [2018-11-07 09:35:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:35:56,885 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-07 09:35:56,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:35:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-07 09:35:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-07 09:35:56,897 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:35:56,898 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:35:56,898 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:35:56,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:35:56,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1983682478, now seen corresponding path program 1 times [2018-11-07 09:35:56,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:35:56,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:35:56,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:35:56,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:35:56,901 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:35:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:35:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:35:57,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:35:57,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:35:57,235 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:35:57,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:35:57,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:35:57,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:35:57,238 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-07 09:36:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:36:06,239 INFO L93 Difference]: Finished difference Result 4416 states and 8482 transitions. [2018-11-07 09:36:06,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:36:06,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-07 09:36:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:36:06,275 INFO L225 Difference]: With dead ends: 4416 [2018-11-07 09:36:06,276 INFO L226 Difference]: Without dead ends: 2948 [2018-11-07 09:36:06,281 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:36:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2018-11-07 09:36:06,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2922. [2018-11-07 09:36:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-07 09:36:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5419 transitions. [2018-11-07 09:36:06,387 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5419 transitions. Word has length 154 [2018-11-07 09:36:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:36:06,388 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 5419 transitions. [2018-11-07 09:36:06,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:36:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5419 transitions. [2018-11-07 09:36:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-07 09:36:06,403 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:36:06,403 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:36:06,403 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:36:06,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:36:06,404 INFO L82 PathProgramCache]: Analyzing trace with hash 119738927, now seen corresponding path program 1 times [2018-11-07 09:36:06,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:36:06,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:36:06,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:36:06,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:36:06,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:36:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:36:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:36:06,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:36:06,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:36:06,689 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:36:06,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:36:06,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:36:06,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:36:06,691 INFO L87 Difference]: Start difference. First operand 2922 states and 5419 transitions. Second operand 6 states. [2018-11-07 09:36:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:36:17,487 INFO L93 Difference]: Finished difference Result 11793 states and 22898 transitions. [2018-11-07 09:36:17,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:36:17,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-07 09:36:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:36:17,554 INFO L225 Difference]: With dead ends: 11793 [2018-11-07 09:36:17,555 INFO L226 Difference]: Without dead ends: 8877 [2018-11-07 09:36:17,587 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:36:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2018-11-07 09:36:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8802. [2018-11-07 09:36:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8802 states. [2018-11-07 09:36:17,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 14072 transitions. [2018-11-07 09:36:17,898 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 14072 transitions. Word has length 155 [2018-11-07 09:36:17,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:36:17,899 INFO L480 AbstractCegarLoop]: Abstraction has 8802 states and 14072 transitions. [2018-11-07 09:36:17,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:36:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 14072 transitions. [2018-11-07 09:36:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-07 09:36:17,906 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:36:17,907 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:36:17,907 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:36:17,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:36:17,908 INFO L82 PathProgramCache]: Analyzing trace with hash -720272287, now seen corresponding path program 1 times [2018-11-07 09:36:17,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:36:17,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:36:17,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:36:17,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:36:17,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:36:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:36:18,312 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:36:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 114 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:36:18,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:36:18,384 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:36:18,385 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-07 09:36:18,387 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:36:18,436 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:36:18,436 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:36:19,004 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:36:19,006 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:36:19,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:36:19,051 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:36:19,590 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 78.28% of their original sizes. [2018-11-07 09:36:19,590 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:36:19,826 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-07 09:36:19,826 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:36:19,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:36:19,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 09:36:19,827 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:36:19,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:36:19,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:36:19,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:36:19,829 INFO L87 Difference]: Start difference. First operand 8802 states and 14072 transitions. Second operand 6 states. [2018-11-07 09:37:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:37:56,885 INFO L93 Difference]: Finished difference Result 18303 states and 29044 transitions. [2018-11-07 09:37:56,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:37:56,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-11-07 09:37:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:37:56,935 INFO L225 Difference]: With dead ends: 18303 [2018-11-07 09:37:56,936 INFO L226 Difference]: Without dead ends: 9507 [2018-11-07 09:37:56,967 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:37:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2018-11-07 09:37:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9505. [2018-11-07 09:37:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9505 states. [2018-11-07 09:37:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9505 states to 9505 states and 14784 transitions. [2018-11-07 09:37:57,223 INFO L78 Accepts]: Start accepts. Automaton has 9505 states and 14784 transitions. Word has length 225 [2018-11-07 09:37:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:37:57,224 INFO L480 AbstractCegarLoop]: Abstraction has 9505 states and 14784 transitions. [2018-11-07 09:37:57,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:37:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 9505 states and 14784 transitions. [2018-11-07 09:37:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-11-07 09:37:57,236 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:37:57,237 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:37:57,237 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:37:57,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:37:57,238 INFO L82 PathProgramCache]: Analyzing trace with hash -572310658, now seen corresponding path program 1 times [2018-11-07 09:37:57,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:37:57,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:37:57,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:37:57,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:37:57,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:37:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:37:57,772 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 09:37:57,981 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 09:37:58,212 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 09:37:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 230 proven. 167 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:37:58,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:37:58,607 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:37:58,607 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-11-07 09:37:58,608 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:37:58,619 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:37:58,620 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:37:58,833 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:37:58,834 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:37:58,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:37:58,843 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:37:59,235 INFO L227 lantSequenceWeakener]: Weakened 409 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 09:37:59,235 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:37:59,450 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-11-07 09:37:59,450 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:37:59,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:37:59,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-11-07 09:37:59,451 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:37:59,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:37:59,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:37:59,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:37:59,452 INFO L87 Difference]: Start difference. First operand 9505 states and 14784 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 09:39:36,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 09:39:36,851 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:39:36,856 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:39:36,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:39:36 BoogieIcfgContainer [2018-11-07 09:39:36,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:39:36,858 INFO L168 Benchmark]: Toolchain (without parser) took 237138.05 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 851.6 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,859 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 09:39:36,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1834.79 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 342.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 803.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -993.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,862 INFO L168 Benchmark]: Boogie Preprocessor took 209.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,862 INFO L168 Benchmark]: RCFGBuilder took 7329.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 526.1 MB). Peak memory consumption was 526.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,863 INFO L168 Benchmark]: TraceAbstraction took 227416.01 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 354.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:39:36,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1834.79 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 342.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 803.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -993.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7329.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 526.1 MB). Peak memory consumption was 526.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227416.01 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 354.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (9505states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (17729 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 227.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 220.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1933 SDtfs, 11447 SDslu, 1015 SDs, 0 SdLazy, 19938 SolverSat, 4849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 172.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 671 GetRequests, 630 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9505occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9975364838288496 AbsIntWeakeningRatio, 0.09133858267716535 AbsIntAvgWeakeningVarsNumRemoved, 16.470866141732284 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 103 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 1478553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 468/700 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown