java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:32:22,569 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:32:22,571 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:32:22,590 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:32:22,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:32:22,591 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:32:22,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:32:22,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:32:22,596 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:32:22,597 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:32:22,598 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:32:22,598 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:32:22,599 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:32:22,600 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:32:22,601 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:32:22,602 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:32:22,602 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:32:22,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:32:22,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:32:22,608 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:32:22,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:32:22,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:32:22,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 12:32:22,619 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:32:22,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:32:22,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:32:22,621 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:32:22,621 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:32:22,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:32:22,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:32:22,638 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:32:22,640 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:32:22,640 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:32:22,641 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:32:22,641 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:32:22,641 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:32:22,641 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:32:22,642 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:32:22,642 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:32:22,642 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:32:22,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:32:22,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:32:22,643 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:32:22,643 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:32:22,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:32:22,644 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:32:22,644 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:32:22,644 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:32:22,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:32:22,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:32:22,646 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:32:22,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:32:22,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:32:22,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:32:22,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:32:22,646 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:32:22,647 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:32:22,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:32:22,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:32:22,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:32:22,648 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:32:22,648 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:32:22,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:32:22,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:32:22,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:32:22,729 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:32:22,729 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:32:22,730 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label30_true-unreach-call.c [2018-09-18 12:32:23,078 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6108cec/658fac5bf02440ce9a3c33385787bd48/FLAG64c6d94e5 [2018-09-18 12:32:23,680 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:32:23,682 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label30_true-unreach-call.c [2018-09-18 12:32:23,732 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6108cec/658fac5bf02440ce9a3c33385787bd48/FLAG64c6d94e5 [2018-09-18 12:32:23,757 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6108cec/658fac5bf02440ce9a3c33385787bd48 [2018-09-18 12:32:23,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:32:23,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:32:23,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:32:23,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:32:23,787 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:32:23,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:32:23" (1/1) ... [2018-09-18 12:32:23,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d945458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:23, skipping insertion in model container [2018-09-18 12:32:23,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:32:23" (1/1) ... [2018-09-18 12:32:23,810 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:32:25,932 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:32:25,950 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:32:27,079 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:32:27,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27 WrapperNode [2018-09-18 12:32:27,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:32:27,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:32:27,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:32:27,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:32:27,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:27,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:28,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:32:28,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:32:28,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:32:28,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:32:29,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... [2018-09-18 12:32:29,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:32:29,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:32:29,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:32:29,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:32:29,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:32:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:32:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:32:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:32:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:32:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:32:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:32:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:32:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:32:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:32:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:32:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:32:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:32:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:32:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:32:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:32:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:32:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:32:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:32:47,620 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:32:47,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:32:47 BoogieIcfgContainer [2018-09-18 12:32:47,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:32:47,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:32:47,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:32:47,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:32:47,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:32:23" (1/3) ... [2018-09-18 12:32:47,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b16c30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:32:47, skipping insertion in model container [2018-09-18 12:32:47,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:27" (2/3) ... [2018-09-18 12:32:47,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b16c30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:32:47, skipping insertion in model container [2018-09-18 12:32:47,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:32:47" (3/3) ... [2018-09-18 12:32:47,629 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label30_true-unreach-call.c [2018-09-18 12:32:47,639 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:32:47,651 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:32:47,721 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:32:47,722 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:32:47,722 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:32:47,722 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:32:47,722 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:32:47,722 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:32:47,722 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:32:47,722 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:32:47,723 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:32:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:32:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-18 12:32:47,783 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:47,784 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:32:47,785 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:47,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1703893274, now seen corresponding path program 1 times [2018-09-18 12:32:47,793 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:47,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:47,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:47,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:47,842 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:48,308 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:32:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:48,372 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:32:48,372 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:32:48,373 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:48,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:32:48,396 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:32:48,396 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:32:48,399 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-18 12:33:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:33:06,421 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-09-18 12:33:06,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:33:06,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-09-18 12:33:06,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:33:06,470 INFO L225 Difference]: With dead ends: 4999 [2018-09-18 12:33:06,471 INFO L226 Difference]: Without dead ends: 3219 [2018-09-18 12:33:06,483 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:33:06,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-09-18 12:33:06,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-09-18 12:33:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-18 12:33:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-09-18 12:33:06,714 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 55 [2018-09-18 12:33:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:33:06,715 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-09-18 12:33:06,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:33:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-09-18 12:33:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-18 12:33:06,729 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:33:06,730 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:33:06,730 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:33:06,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1692857214, now seen corresponding path program 1 times [2018-09-18 12:33:06,732 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:33:06,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:06,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:33:06,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:06,733 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:33:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:33:07,111 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:33:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:33:07,492 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:33:07,492 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:33:07,492 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:33:07,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:33:07,494 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:33:07,495 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:33:07,495 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-09-18 12:33:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:33:36,770 INFO L93 Difference]: Finished difference Result 10741 states and 19743 transitions. [2018-09-18 12:33:36,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:33:36,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-09-18 12:33:36,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:33:36,826 INFO L225 Difference]: With dead ends: 10741 [2018-09-18 12:33:36,827 INFO L226 Difference]: Without dead ends: 7532 [2018-09-18 12:33:36,842 INFO L604 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 [2018-09-18 12:33:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7532 states. [2018-09-18 12:33:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7532 to 7494. [2018-09-18 12:33:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7494 states. [2018-09-18 12:33:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 12434 transitions. [2018-09-18 12:33:37,086 INFO L78 Accepts]: Start accepts. Automaton has 7494 states and 12434 transitions. Word has length 127 [2018-09-18 12:33:37,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:33:37,087 INFO L480 AbstractCegarLoop]: Abstraction has 7494 states and 12434 transitions. [2018-09-18 12:33:37,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:33:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7494 states and 12434 transitions. [2018-09-18 12:33:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-18 12:33:37,102 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:33:37,103 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:33:37,103 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:33:37,106 INFO L82 PathProgramCache]: Analyzing trace with hash -2052765116, now seen corresponding path program 1 times [2018-09-18 12:33:37,107 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:33:37,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:37,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:33:37,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:37,108 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:33:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:33:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:33:37,415 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:33:37,415 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:33:37,416 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:33:37,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:33:37,417 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:33:37,417 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:33:37,417 INFO L87 Difference]: Start difference. First operand 7494 states and 12434 transitions. Second operand 6 states. [2018-09-18 12:34:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:34:23,820 INFO L93 Difference]: Finished difference Result 28496 states and 48920 transitions. [2018-09-18 12:34:23,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 12:34:23,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-09-18 12:34:23,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:34:23,917 INFO L225 Difference]: With dead ends: 28496 [2018-09-18 12:34:23,917 INFO L226 Difference]: Without dead ends: 21008 [2018-09-18 12:34:23,971 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:34:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21008 states. [2018-09-18 12:34:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21008 to 20914. [2018-09-18 12:34:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20914 states. [2018-09-18 12:34:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20914 states to 20914 states and 30732 transitions. [2018-09-18 12:34:24,511 INFO L78 Accepts]: Start accepts. Automaton has 20914 states and 30732 transitions. Word has length 145 [2018-09-18 12:34:24,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:34:24,511 INFO L480 AbstractCegarLoop]: Abstraction has 20914 states and 30732 transitions. [2018-09-18 12:34:24,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:34:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 20914 states and 30732 transitions. [2018-09-18 12:34:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-18 12:34:24,519 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:34:24,522 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:34:24,523 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:34:24,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1705394297, now seen corresponding path program 1 times [2018-09-18 12:34:24,523 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:34:24,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:24,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:24,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:24,525 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:34:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:24,877 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:34:24,878 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:34:24,878 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:34:24,878 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:34:24,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:34:24,879 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:34:24,879 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:34:24,880 INFO L87 Difference]: Start difference. First operand 20914 states and 30732 transitions. Second operand 5 states. [2018-09-18 12:34:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:34:49,248 INFO L93 Difference]: Finished difference Result 62003 states and 96510 transitions. [2018-09-18 12:34:49,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:34:49,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2018-09-18 12:34:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:34:49,416 INFO L225 Difference]: With dead ends: 62003 [2018-09-18 12:34:49,417 INFO L226 Difference]: Without dead ends: 41095 [2018-09-18 12:34:49,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:34:49,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41095 states. [2018-09-18 12:34:50,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41095 to 40018. [2018-09-18 12:34:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40018 states. [2018-09-18 12:34:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40018 states to 40018 states and 56272 transitions. [2018-09-18 12:34:50,525 INFO L78 Accepts]: Start accepts. Automaton has 40018 states and 56272 transitions. Word has length 190 [2018-09-18 12:34:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:34:50,525 INFO L480 AbstractCegarLoop]: Abstraction has 40018 states and 56272 transitions. [2018-09-18 12:34:50,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:34:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 40018 states and 56272 transitions. [2018-09-18 12:34:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-18 12:34:50,536 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:34:50,536 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:34:50,536 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:34:50,536 INFO L82 PathProgramCache]: Analyzing trace with hash -680528982, now seen corresponding path program 1 times [2018-09-18 12:34:50,537 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:34:50,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:50,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:50,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:50,538 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:34:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 96 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:51,053 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:34:51,054 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:34:51,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:51,074 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:34:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:51,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:34:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 12:34:51,433 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:34:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 96 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:52,353 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:34:52,353 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-18 12:34:52,354 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:34:52,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:34:52,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:34:52,355 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:34:52,355 INFO L87 Difference]: Start difference. First operand 40018 states and 56272 transitions. Second operand 5 states. [2018-09-18 12:35:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:35:17,316 INFO L93 Difference]: Finished difference Result 121413 states and 181026 transitions. [2018-09-18 12:35:17,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:35:17,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-09-18 12:35:17,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:35:17,652 INFO L225 Difference]: With dead ends: 121413 [2018-09-18 12:35:17,653 INFO L226 Difference]: Without dead ends: 81401 [2018-09-18 12:35:17,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:35:17,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81401 states. [2018-09-18 12:35:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81401 to 79771. [2018-09-18 12:35:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79771 states. [2018-09-18 12:35:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79771 states to 79771 states and 110441 transitions. [2018-09-18 12:35:19,718 INFO L78 Accepts]: Start accepts. Automaton has 79771 states and 110441 transitions. Word has length 210 [2018-09-18 12:35:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:35:19,719 INFO L480 AbstractCegarLoop]: Abstraction has 79771 states and 110441 transitions. [2018-09-18 12:35:19,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:35:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 79771 states and 110441 transitions. [2018-09-18 12:35:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-09-18 12:35:19,728 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:35:19,728 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:35:19,728 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:35:19,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1171034016, now seen corresponding path program 1 times [2018-09-18 12:35:19,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:35:19,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:19,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:19,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:19,731 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:35:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:20,017 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:35:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 96 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:35:20,434 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:35:20,434 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:35:20,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:20,451 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:35:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:20,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:35:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 12:35:20,845 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:35:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 96 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:35:21,001 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:35:21,001 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 12:35:21,001 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:35:21,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:35:21,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:35:21,003 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:35:21,003 INFO L87 Difference]: Start difference. First operand 79771 states and 110441 transitions. Second operand 5 states. [2018-09-18 12:35:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:35:46,396 INFO L93 Difference]: Finished difference Result 246367 states and 381829 transitions. [2018-09-18 12:35:46,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:35:46,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2018-09-18 12:35:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:35:46,914 INFO L225 Difference]: With dead ends: 246367 [2018-09-18 12:35:46,915 INFO L226 Difference]: Without dead ends: 166602 [2018-09-18 12:35:47,083 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 446 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:35:47,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166602 states. [2018-09-18 12:35:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166602 to 164859. [2018-09-18 12:35:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164859 states. [2018-09-18 12:35:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164859 states to 164859 states and 235880 transitions. [2018-09-18 12:35:50,604 INFO L78 Accepts]: Start accepts. Automaton has 164859 states and 235880 transitions. Word has length 226 [2018-09-18 12:35:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:35:50,605 INFO L480 AbstractCegarLoop]: Abstraction has 164859 states and 235880 transitions. [2018-09-18 12:35:50,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:35:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 164859 states and 235880 transitions. [2018-09-18 12:35:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-09-18 12:35:51,667 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:35:51,667 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:35:51,668 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:35:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1801656800, now seen corresponding path program 1 times [2018-09-18 12:35:51,668 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:35:51,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:51,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:51,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:51,669 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:35:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:52,423 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-18 12:35:52,424 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:35:52,424 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:35:52,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:52,440 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:35:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:52,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:35:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 12:35:53,116 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:35:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-18 12:35:53,537 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:35:53,537 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:35:53,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:53,553 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:35:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:53,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:35:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 12:35:54,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:35:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-18 12:35:54,459 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:35:54,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 12:35:54,459 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:35:54,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:35:54,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:35:54,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-18 12:35:54,461 INFO L87 Difference]: Start difference. First operand 164859 states and 235880 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 12:36:17,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-09-18 12:36:17,435 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:36:17,442 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:36:17,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:36:17 BoogieIcfgContainer [2018-09-18 12:36:17,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:36:17,443 INFO L168 Benchmark]: Toolchain (without parser) took 233671.22 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 969.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,444 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:36:17,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3946.17 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 184.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -100.3 MB). Peak memory consumption was 484.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.66 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,446 INFO L168 Benchmark]: Boogie Preprocessor took 1707.37 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 891.8 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -917.4 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,447 INFO L168 Benchmark]: RCFGBuilder took 17861.64 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 231.7 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 177.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,448 INFO L168 Benchmark]: TraceAbstraction took 209820.22 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 750.8 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -305.2 MB). Peak memory consumption was 445.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:36:17,454 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3946.17 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 184.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -100.3 MB). Peak memory consumption was 484.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 328.66 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1707.37 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 891.8 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -917.4 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17861.64 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 231.7 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 177.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 209820.22 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 750.8 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -305.2 MB). Peak memory consumption was 445.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 160). Cancelled while BasicCegarLoop was constructing difference of abstraction (164859states) and FLOYD_HOARE automaton (currently 51 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (124225 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 209.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 193.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3831 SDtfs, 42540 SDslu, 5394 SDs, 0 SdLazy, 77833 SolverSat, 16846 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 165.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2813 GetRequests, 2705 SyntacticMatches, 9 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164859occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 4586 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4060 ConstructedInterpolants, 0 QuantifiedInterpolants, 3047193 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2266 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 2587/3064 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label30_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-36-17-469.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label30_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-36-17-469.csv Completed graceful shutdown