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/Problem18_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:13:53,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:13:53,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:13:53,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:13:53,418 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:13:53,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:13:53,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:13:53,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:13:53,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:13:53,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:13:53,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:13:53,426 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:13:53,427 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:13:53,428 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:13:53,429 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:13:53,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:13:53,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:13:53,433 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:13:53,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:13:53,436 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:13:53,437 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:13:53,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:13:53,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:13:53,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:13:53,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:13:53,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:13:53,457 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:13:53,457 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 02:13:53,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:13:53,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:13:53,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:13:53,484 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:13:53,484 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:13:53,484 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:13:53,485 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:13:53,485 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:13:53,486 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:13:53,486 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:13:53,486 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:13:53,486 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:13:53,487 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:13:53,487 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:13:53,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:13:53,488 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:13:53,488 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:13:53,488 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:13:53,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:13:53,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:13:53,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:13:53,489 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:13:53,489 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:13:53,489 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:13:53,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:13:53,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:13:53,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:13:53,491 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:13:53,491 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:13:53,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:13:53,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:13:53,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:13:53,565 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:13:53,566 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:13:53,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-24 02:13:53,624 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d6f23062/561f418ba8824ea6ace68238d6a4eeda/FLAG9a27be815 [2018-10-24 02:13:54,331 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:13:54,332 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-24 02:13:54,362 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d6f23062/561f418ba8824ea6ace68238d6a4eeda/FLAG9a27be815 [2018-10-24 02:13:54,379 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d6f23062/561f418ba8824ea6ace68238d6a4eeda [2018-10-24 02:13:54,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:13:54,393 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:13:54,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:13:54,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:13:54,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:13:54,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:13:54" (1/1) ... [2018-10-24 02:13:54,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5c2a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:54, skipping insertion in model container [2018-10-24 02:13:54,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:13:54" (1/1) ... [2018-10-24 02:13:54,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:13:54,573 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:13:55,732 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:13:55,738 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:13:56,196 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:13:56,225 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:13:56,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56 WrapperNode [2018-10-24 02:13:56,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:13:56,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:13:56,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:13:56,228 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:13:56,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:13:56,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:13:56,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:13:56,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:13:56,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (1/1) ... [2018-10-24 02:13:56,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:13:56,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:13:56,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:13:56,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:13:56,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (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 02:13:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:13:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:13:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 02:13:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 02:13:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:13:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:13:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:13:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:13:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:13:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:13:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:13:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:14:04,656 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:14:04,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:04 BoogieIcfgContainer [2018-10-24 02:14:04,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:14:04,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:14:04,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:14:04,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:14:04,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:13:54" (1/3) ... [2018-10-24 02:14:04,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21155c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:04, skipping insertion in model container [2018-10-24 02:14:04,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:56" (2/3) ... [2018-10-24 02:14:04,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21155c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:04, skipping insertion in model container [2018-10-24 02:14:04,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:04" (3/3) ... [2018-10-24 02:14:04,666 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label24_true-unreach-call.c [2018-10-24 02:14:04,676 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:14:04,686 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:14:04,703 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:14:04,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:14:04,749 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:14:04,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:14:04,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:14:04,750 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:14:04,750 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:14:04,750 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:14:04,750 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:14:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 02:14:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-24 02:14:04,798 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:04,799 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] [2018-10-24 02:14:04,801 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:04,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:04,808 INFO L82 PathProgramCache]: Analyzing trace with hash -926912268, now seen corresponding path program 1 times [2018-10-24 02:14:04,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:04,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:04,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:04,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:04,866 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:05,306 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:14:05,446 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 02:14:05,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:14:05,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:14:05,449 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:05,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:14:05,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:14:05,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:14:05,478 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 02:14:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:14:11,794 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 02:14:11,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:14:11,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-10-24 02:14:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:14:11,829 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 02:14:11,829 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 02:14:11,847 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 02:14:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 02:14:11,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 02:14:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 02:14:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 02:14:12,003 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 58 [2018-10-24 02:14:12,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:14:12,004 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 02:14:12,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:14:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 02:14:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-24 02:14:12,018 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:12,018 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, 1, 1, 1, 1, 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 02:14:12,019 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:12,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:12,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1481566434, now seen corresponding path program 1 times [2018-10-24 02:14:12,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:12,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:12,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:12,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:12,022 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:14:12,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:14:12,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:14:12,283 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:12,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:14:12,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:14:12,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:14:12,285 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 02:14:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:14:19,962 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 02:14:19,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:14:19,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2018-10-24 02:14:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:14:19,990 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 02:14:19,991 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 02:14:19,997 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:14:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 02:14:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 02:14:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 02:14:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 02:14:20,091 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 128 [2018-10-24 02:14:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:14:20,091 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 02:14:20,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:14:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 02:14:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 02:14:20,095 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:20,096 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, 1, 1, 1, 1, 1, 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 02:14:20,096 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:20,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash -74605249, now seen corresponding path program 1 times [2018-10-24 02:14:20,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:20,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:20,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:20,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:20,098 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:14:20,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:14:20,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:14:20,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:20,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:14:20,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:14:20,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:14:20,306 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 02:14:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:14:26,132 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 02:14:26,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:14:26,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-24 02:14:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:14:26,160 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 02:14:26,160 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 02:14:26,170 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:14:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 02:14:26,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 02:14:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 02:14:26,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 02:14:26,307 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 129 [2018-10-24 02:14:26,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:14:26,307 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 02:14:26,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:14:26,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 02:14:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 02:14:26,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:26,311 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, 1, 1, 1, 1, 1, 1, 1, 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 02:14:26,311 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:26,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:26,312 INFO L82 PathProgramCache]: Analyzing trace with hash 780877979, now seen corresponding path program 1 times [2018-10-24 02:14:26,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:26,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:26,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:26,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:26,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:26,597 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:14:26,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:14:26,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:14:26,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:26,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:14:26,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:14:26,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:14:26,600 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 02:14:37,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:14:37,657 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-24 02:14:37,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:14:37,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-10-24 02:14:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:14:37,707 INFO L225 Difference]: With dead ends: 14819 [2018-10-24 02:14:37,707 INFO L226 Difference]: Without dead ends: 10434 [2018-10-24 02:14:37,730 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 02:14:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-24 02:14:37,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-24 02:14:37,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-24 02:14:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-24 02:14:38,005 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 131 [2018-10-24 02:14:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:14:38,006 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-24 02:14:38,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:14:38,006 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-24 02:14:38,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-24 02:14:38,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:38,013 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, 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] [2018-10-24 02:14:38,014 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:38,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:38,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1819923301, now seen corresponding path program 1 times [2018-10-24 02:14:38,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:38,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:38,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:38,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:38,016 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 02:14:38,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:14:38,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:14:38,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:38,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:14:38,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:14:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:14:38,307 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 4 states. [2018-10-24 02:14:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:14:46,959 INFO L93 Difference]: Finished difference Result 37629 states and 51788 transitions. [2018-10-24 02:14:46,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:14:46,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2018-10-24 02:14:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:14:47,086 INFO L225 Difference]: With dead ends: 37629 [2018-10-24 02:14:47,087 INFO L226 Difference]: Without dead ends: 27351 [2018-10-24 02:14:47,148 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:14:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27351 states. [2018-10-24 02:14:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27351 to 27340. [2018-10-24 02:14:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27340 states. [2018-10-24 02:14:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27340 states to 27340 states and 35081 transitions. [2018-10-24 02:14:47,835 INFO L78 Accepts]: Start accepts. Automaton has 27340 states and 35081 transitions. Word has length 235 [2018-10-24 02:14:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:14:47,836 INFO L481 AbstractCegarLoop]: Abstraction has 27340 states and 35081 transitions. [2018-10-24 02:14:47,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:14:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 27340 states and 35081 transitions. [2018-10-24 02:14:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2018-10-24 02:14:47,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:14:47,872 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 02:14:47,872 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:14:47,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:47,873 INFO L82 PathProgramCache]: Analyzing trace with hash 247952755, now seen corresponding path program 1 times [2018-10-24 02:14:47,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:14:47,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:47,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:14:47,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:14:47,874 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:14:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:14:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 339 proven. 183 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 02:14:49,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:14:49,410 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:14:49,411 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 450 with the following transitions: [2018-10-24 02:14:49,413 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], [1987], [1989], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [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], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2356], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 02:14:49,522 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:14:49,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:14:53,405 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:14:53,901 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:14:53,903 INFO L272 AbstractInterpreter]: Visited 144 different actions 144 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 02:14:53,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:14:53,935 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:14:57,535 INFO L232 lantSequenceWeakener]: Weakened 438 states. On average, predicates are now at 77.75% of their original sizes. [2018-10-24 02:14:57,536 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:14:57,880 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:14:57,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:14:57,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-24 02:14:57,882 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:14:57,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:14:57,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:14:57,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:14:57,884 INFO L87 Difference]: Start difference. First operand 27340 states and 35081 transitions. Second operand 7 states. [2018-10-24 02:16:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:16:34,469 INFO L93 Difference]: Finished difference Result 55379 states and 70894 transitions. [2018-10-24 02:16:34,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:16:34,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 449 [2018-10-24 02:16:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:16:34,556 INFO L225 Difference]: With dead ends: 55379 [2018-10-24 02:16:34,556 INFO L226 Difference]: Without dead ends: 28045 [2018-10-24 02:16:34,605 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 449 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:16:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28045 states. [2018-10-24 02:16:35,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28045 to 28043. [2018-10-24 02:16:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28043 states. [2018-10-24 02:16:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28043 states to 28043 states and 35796 transitions. [2018-10-24 02:16:35,137 INFO L78 Accepts]: Start accepts. Automaton has 28043 states and 35796 transitions. Word has length 449 [2018-10-24 02:16:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:16:35,138 INFO L481 AbstractCegarLoop]: Abstraction has 28043 states and 35796 transitions. [2018-10-24 02:16:35,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 02:16:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 28043 states and 35796 transitions. [2018-10-24 02:16:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-10-24 02:16:35,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:16:35,178 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 02:16:35,178 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:16:35,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:16:35,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2034321767, now seen corresponding path program 1 times [2018-10-24 02:16:35,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:16:35,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:16:35,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:16:35,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:16:35,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:16:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:16:35,835 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 02:16:36,042 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 02:16:36,567 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 02:16:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 212 proven. 383 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:16:37,522 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:16:37,522 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:16:37,522 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 600 with the following transitions: [2018-10-24 02:16:37,523 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], [1987], [1989], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [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], [2356], [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], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2732], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 02:16:37,537 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:16:37,538 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:16:39,999 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:16:54,285 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:16:54,286 INFO L272 AbstractInterpreter]: Visited 233 different actions 459 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 02:16:54,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:16:54,324 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:17:00,556 INFO L232 lantSequenceWeakener]: Weakened 289 states. On average, predicates are now at 77.57% of their original sizes. [2018-10-24 02:17:00,556 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 02:17:34,908 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:17:34,914 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:17:34,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:17:34 BoogieIcfgContainer [2018-10-24 02:17:34,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:17:34,915 INFO L168 Benchmark]: Toolchain (without parser) took 220524.04 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 02:17:34,917 INFO L168 Benchmark]: CDTParser took 0.14 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 02:17:34,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1833.27 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. [2018-10-24 02:17:34,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 489.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 816.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -993.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:17:34,920 INFO L168 Benchmark]: Boogie Preprocessor took 213.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:17:34,921 INFO L168 Benchmark]: RCFGBuilder took 7726.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 521.9 MB). Peak memory consumption was 521.9 MB. Max. memory is 7.1 GB. [2018-10-24 02:17:34,922 INFO L168 Benchmark]: TraceAbstraction took 210256.17 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 671.9 MB. Max. memory is 7.1 GB. [2018-10-24 02:17:34,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 1833.27 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 489.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 816.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -993.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7726.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 521.9 MB). Peak memory consumption was 521.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210256.17 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 671.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while BasicCegarLoop was analyzing trace of length 600 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 210.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 136.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1686 SDtfs, 12355 SDslu, 869 SDs, 0 SdLazy, 22140 SolverSat, 5750 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 486 GetRequests, 455 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28043occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9975008313242992 AbsIntWeakeningRatio, 0.06118546845124283 AbsIntAvgWeakeningVarsNumRemoved, 398.39483747609944 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 224 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1130 NumberOfCodeBlocks, 1130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1124 ConstructedInterpolants, 0 QuantifiedInterpolants, 974855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 671/854 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown