java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:03:35,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:03:35,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:03:35,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:03:35,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:03:35,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:03:35,549 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:03:35,551 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:03:35,553 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:03:35,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:03:35,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:03:35,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:03:35,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:03:35,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:03:35,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:03:35,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:03:35,571 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:03:35,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:03:35,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:03:35,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:03:35,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:03:35,585 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:03:35,589 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:03:35,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:03:35,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:03:35,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:03:35,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:03:35,593 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:03:35,594 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:03:35,595 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:03:35,595 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:03:35,596 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:03:35,597 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:03:35,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:03:35,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:03:35,599 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:03:35,599 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:03:35,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:03:35,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:03:35,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:03:35,617 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:03:35,617 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:03:35,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:03:35,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:03:35,618 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:03:35,618 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:03:35,618 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:03:35,619 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:03:35,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:03:35,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:03:35,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:03:35,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:03:35,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:03:35,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:03:35,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:03:35,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:03:35,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:03:35,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:03:35,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:03:35,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:03:35,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:03:35,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:03:35,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:03:35,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:03:35,622 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:03:35,623 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:03:35,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:03:35,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:03:35,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:03:35,701 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:03:35,701 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:03:35,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-24 19:03:35,767 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/baf7819bc/71814f1599084077aa3394da1c3204dd/FLAG5ce3bc1e5 [2018-10-24 19:03:36,734 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:03:36,735 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label10_false-unreach-call.c [2018-10-24 19:03:36,784 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/baf7819bc/71814f1599084077aa3394da1c3204dd/FLAG5ce3bc1e5 [2018-10-24 19:03:36,801 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/baf7819bc/71814f1599084077aa3394da1c3204dd [2018-10-24 19:03:36,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:03:36,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:03:36,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:03:36,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:03:36,824 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:03:36,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:36" (1/1) ... [2018-10-24 19:03:36,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1086b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:36, skipping insertion in model container [2018-10-24 19:03:36,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:03:36" (1/1) ... [2018-10-24 19:03:36,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:03:37,107 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:03:39,103 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:03:39,109 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:03:40,620 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:03:40,685 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:03:40,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40 WrapperNode [2018-10-24 19:03:40,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:03:40,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:03:40,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:03:40,687 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:03:40,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:40,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:41,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:03:41,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:03:41,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:03:41,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:03:41,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:41,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:41,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:41,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:42,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:42,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:42,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... [2018-10-24 19:03:42,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:03:42,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:03:42,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:03:42,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:03:42,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:03:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:03:42,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:03:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 19:03:42,276 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 19:03:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 19:03:42,276 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 19:03:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 19:03:42,276 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 19:03:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 19:03:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 19:03:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 19:03:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 19:03:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:03:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:03:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:03:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:03:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:03:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:03:59,400 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:03:59,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:59 BoogieIcfgContainer [2018-10-24 19:03:59,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:03:59,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:03:59,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:03:59,406 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:03:59,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:03:36" (1/3) ... [2018-10-24 19:03:59,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56bfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:59, skipping insertion in model container [2018-10-24 19:03:59,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:03:40" (2/3) ... [2018-10-24 19:03:59,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56bfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:03:59, skipping insertion in model container [2018-10-24 19:03:59,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:03:59" (3/3) ... [2018-10-24 19:03:59,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label10_false-unreach-call.c [2018-10-24 19:03:59,420 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:03:59,433 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:03:59,450 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:03:59,512 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:03:59,513 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:03:59,513 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:03:59,513 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:03:59,513 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:03:59,513 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:03:59,513 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:03:59,513 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:03:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 19:03:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 19:03:59,582 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:03:59,583 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:03:59,586 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:03:59,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:03:59,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1575174468, now seen corresponding path program 1 times [2018-10-24 19:03:59,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:03:59,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:59,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:03:59,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:59,650 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:03:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:04:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:04:00,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:04:00,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:04:00,024 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:04:00,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:04:00,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:04:00,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:04:00,061 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 19:04:15,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:04:15,351 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-10-24 19:04:15,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:04:15,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-24 19:04:15,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:04:15,415 INFO L225 Difference]: With dead ends: 4995 [2018-10-24 19:04:15,415 INFO L226 Difference]: Without dead ends: 3215 [2018-10-24 19:04:15,427 INFO L605 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 [2018-10-24 19:04:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-10-24 19:04:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-10-24 19:04:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-10-24 19:04:15,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-10-24 19:04:15,656 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 14 [2018-10-24 19:04:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:04:15,657 INFO L481 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-10-24 19:04:15,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:04:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-10-24 19:04:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-24 19:04:15,662 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:04:15,665 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:04:15,665 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:04:15,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:04:15,666 INFO L82 PathProgramCache]: Analyzing trace with hash 614531015, now seen corresponding path program 1 times [2018-10-24 19:04:15,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:04:15,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:04:15,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:04:15,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:04:15,668 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:04:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:04:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:04:16,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:04:16,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:04:16,174 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:04:16,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:04:16,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:04:16,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:04:16,177 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-10-24 19:05:02,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:05:02,651 INFO L93 Difference]: Finished difference Result 12253 states and 22711 transitions. [2018-10-24 19:05:02,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 19:05:02,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-24 19:05:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:05:02,712 INFO L225 Difference]: With dead ends: 12253 [2018-10-24 19:05:02,713 INFO L226 Difference]: Without dead ends: 9046 [2018-10-24 19:05:02,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:05:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2018-10-24 19:05:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 8968. [2018-10-24 19:05:03,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8968 states. [2018-10-24 19:05:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 13250 transitions. [2018-10-24 19:05:03,058 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 13250 transitions. Word has length 88 [2018-10-24 19:05:03,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:05:03,059 INFO L481 AbstractCegarLoop]: Abstraction has 8968 states and 13250 transitions. [2018-10-24 19:05:03,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:05:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 13250 transitions. [2018-10-24 19:05:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 19:05:03,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:05:03,067 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:05:03,070 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:05:03,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:05:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2114032823, now seen corresponding path program 1 times [2018-10-24 19:05:03,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:05:03,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:03,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:05:03,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:03,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:05:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:05:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:05:03,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:05:03,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:05:03,501 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:03,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:05:03,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:05:03,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:05:03,505 INFO L87 Difference]: Start difference. First operand 8968 states and 13250 transitions. Second operand 6 states. [2018-10-24 19:05:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:05:25,235 INFO L93 Difference]: Finished difference Result 27246 states and 40835 transitions. [2018-10-24 19:05:25,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:05:25,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-10-24 19:05:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:05:25,330 INFO L225 Difference]: With dead ends: 27246 [2018-10-24 19:05:25,330 INFO L226 Difference]: Without dead ends: 18284 [2018-10-24 19:05:25,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:05:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18284 states. [2018-10-24 19:05:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18284 to 18016. [2018-10-24 19:05:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18016 states. [2018-10-24 19:05:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18016 states to 18016 states and 26094 transitions. [2018-10-24 19:05:25,764 INFO L78 Accepts]: Start accepts. Automaton has 18016 states and 26094 transitions. Word has length 96 [2018-10-24 19:05:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:05:25,764 INFO L481 AbstractCegarLoop]: Abstraction has 18016 states and 26094 transitions. [2018-10-24 19:05:25,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:05:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 18016 states and 26094 transitions. [2018-10-24 19:05:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 19:05:25,771 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:05:25,771 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:05:25,771 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:05:25,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:05:25,773 INFO L82 PathProgramCache]: Analyzing trace with hash 325319969, now seen corresponding path program 1 times [2018-10-24 19:05:25,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:05:25,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:25,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:05:25,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:25,774 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:05:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:05:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:05:26,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:05:26,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:05:26,107 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:26,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:05:26,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:05:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:05:26,109 INFO L87 Difference]: Start difference. First operand 18016 states and 26094 transitions. Second operand 5 states. [2018-10-24 19:05:54,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:05:54,817 INFO L93 Difference]: Finished difference Result 55400 states and 81898 transitions. [2018-10-24 19:05:54,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 19:05:54,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-10-24 19:05:54,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:05:54,924 INFO L225 Difference]: With dead ends: 55400 [2018-10-24 19:05:54,925 INFO L226 Difference]: Without dead ends: 37390 [2018-10-24 19:05:54,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:05:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37390 states. [2018-10-24 19:05:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37390 to 36477. [2018-10-24 19:05:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36477 states. [2018-10-24 19:05:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36477 states to 36477 states and 48125 transitions. [2018-10-24 19:05:55,729 INFO L78 Accepts]: Start accepts. Automaton has 36477 states and 48125 transitions. Word has length 116 [2018-10-24 19:05:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:05:55,730 INFO L481 AbstractCegarLoop]: Abstraction has 36477 states and 48125 transitions. [2018-10-24 19:05:55,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:05:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 36477 states and 48125 transitions. [2018-10-24 19:05:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-10-24 19:05:55,741 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:05:55,742 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:05:55,742 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:05:55,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:05:55,742 INFO L82 PathProgramCache]: Analyzing trace with hash 788582574, now seen corresponding path program 1 times [2018-10-24 19:05:55,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:05:55,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:55,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:05:55,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:55,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:05:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:05:56,093 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:05:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:05:56,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:05:56,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:05:56,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:56,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:05:56,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:05:56,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:05:56,526 INFO L87 Difference]: Start difference. First operand 36477 states and 48125 transitions. Second operand 6 states. [2018-10-24 19:06:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:17,267 INFO L93 Difference]: Finished difference Result 89627 states and 122124 transitions. [2018-10-24 19:06:17,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:06:17,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2018-10-24 19:06:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:17,420 INFO L225 Difference]: With dead ends: 89627 [2018-10-24 19:06:17,420 INFO L226 Difference]: Without dead ends: 53156 [2018-10-24 19:06:17,482 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:06:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53156 states. [2018-10-24 19:06:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53156 to 52150. [2018-10-24 19:06:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52150 states. [2018-10-24 19:06:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52150 states to 52150 states and 67855 transitions. [2018-10-24 19:06:18,416 INFO L78 Accepts]: Start accepts. Automaton has 52150 states and 67855 transitions. Word has length 179 [2018-10-24 19:06:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:18,417 INFO L481 AbstractCegarLoop]: Abstraction has 52150 states and 67855 transitions. [2018-10-24 19:06:18,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:06:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 52150 states and 67855 transitions. [2018-10-24 19:06:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2018-10-24 19:06:18,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:18,447 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:06:18,448 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:18,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:18,448 INFO L82 PathProgramCache]: Analyzing trace with hash -45001300, now seen corresponding path program 1 times [2018-10-24 19:06:18,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:18,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:18,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:18,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:18,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:19,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:06:19,583 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:06:19,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 688 with the following transitions: [2018-10-24 19:06:19,596 INFO L202 CegarAbsIntRunner]: [0], [1], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3449], [3454], [3456], [4195], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5225], [5226], [5227], [5234], [5238], [5240], [5243], [5251], [5259], [5267], [5275], [5283], [5291], [5299], [5307], [5315], [5323], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6833], [6834], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-10-24 19:06:19,728 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:06:19,728 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:06:38,318 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:06:38,320 INFO L272 AbstractInterpreter]: Visited 591 different actions 591 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 19:06:38,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:38,330 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:06:44,412 INFO L232 lantSequenceWeakener]: Weakened 671 states. On average, predicates are now at 74.98% of their original sizes. [2018-10-24 19:06:44,412 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:06:45,704 INFO L413 sIntCurrentIteration]: We have 686 unified AI predicates [2018-10-24 19:06:45,705 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:06:45,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:06:45,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-24 19:06:45,706 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:45,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 19:06:45,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 19:06:45,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-10-24 19:06:45,708 INFO L87 Difference]: Start difference. First operand 52150 states and 67855 transitions. Second operand 13 states. [2018-10-24 19:07:00,090 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 19:07:23,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:07:23,221 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:07:23,228 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:07:23,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:07:23 BoogieIcfgContainer [2018-10-24 19:07:23,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:07:23,230 INFO L168 Benchmark]: Toolchain (without parser) took 226413.82 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 508.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,231 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:07:23,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3867.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.2 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 1052.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 681.6 MB). Free memory was 990.2 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 100.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,233 INFO L168 Benchmark]: Boogie Preprocessor took 467.14 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,234 INFO L168 Benchmark]: RCFGBuilder took 17194.82 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 313.5 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 86.7 MB). Peak memory consumption was 964.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,235 INFO L168 Benchmark]: TraceAbstraction took 203826.42 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:07:23,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3867.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.2 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1052.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 681.6 MB). Free memory was 990.2 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 100.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 467.14 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17194.82 ms. Allocated memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: 313.5 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 86.7 MB). Peak memory consumption was 964.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203826.42 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (52150states) and FLOYD_HOARE automaton (currently 9 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (1625 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 203.7s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 171.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2850 SDtfs, 28991 SDslu, 3747 SDs, 0 SdLazy, 44727 SolverSat, 9909 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 126.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 731 GetRequests, 688 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52150occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9984278986319801 AbsIntWeakeningRatio, 0.05393586005830904 AbsIntAvgWeakeningVarsNumRemoved, 1066.9927113702624 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 2267 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1180 NumberOfCodeBlocks, 1180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1174 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 119/121 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown