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-dace188-m [2018-09-14 18:22:25,569 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:22:25,571 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:22:25,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:22:25,583 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:22:25,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:22:25,586 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:22:25,588 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:22:25,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:22:25,590 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:22:25,591 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:22:25,591 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:22:25,592 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:22:25,593 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:22:25,594 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:22:25,595 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:22:25,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:22:25,598 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:22:25,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:22:25,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:22:25,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:22:25,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:22:25,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 18:22:25,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:22:25,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:22:25,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:22:25,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:22:25,624 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 [2018-09-14 18:22:25,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:22:25,639 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:22:25,640 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:22:25,640 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:22:25,641 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:22:25,641 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:22:25,641 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:22:25,641 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:22:25,641 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:22:25,642 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:22:25,642 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:22:25,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:22:25,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:22:25,643 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:22:25,643 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:22:25,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:22:25,644 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:22:25,644 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:22:25,644 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:22:25,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:22:25,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:22:25,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:22:25,645 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:22:25,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:22:25,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:22:25,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:22:25,646 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:22:25,646 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:22:25,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:22:25,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:22:25,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:22:25,647 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:22:25,647 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:22:25,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:22:25,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:22:25,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:22:25,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:22:25,707 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:22:25,708 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label30_true-unreach-call.c [2018-09-14 18:22:26,068 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88ede26e/3063fd1d4512466aa5d91d38504938e5/FLAGde691bc81 [2018-09-14 18:22:26,644 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:22:26,645 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label30_true-unreach-call.c [2018-09-14 18:22:26,692 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88ede26e/3063fd1d4512466aa5d91d38504938e5/FLAGde691bc81 [2018-09-14 18:22:26,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88ede26e/3063fd1d4512466aa5d91d38504938e5 [2018-09-14 18:22:26,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:22:26,734 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:22:26,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:22:26,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:22:26,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:22:26,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:26,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26, skipping insertion in model container [2018-09-14 18:22:26,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:26,765 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:22:28,842 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:22:28,860 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:22:29,815 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:22:30,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30 WrapperNode [2018-09-14 18:22:30,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:22:30,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:22:30,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:22:30,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:22:30,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:30,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:31,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:22:31,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:22:31,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:22:31,851 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:22:31,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:31,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:31,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:31,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:32,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:32,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:32,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (1/1) ... [2018-09-14 18:22:32,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:22:32,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:22:32,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:22:32,543 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:22:32,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (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 [2018-09-14 18:22:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:22:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:22:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:22:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:22:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:22:32,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:22:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:22:32,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:22:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:22:32,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:22:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:22:32,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:22:32,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:22:32,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:22:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:22:32,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:22:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:22:32,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:22:50,902 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:22:50,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:22:50 BoogieIcfgContainer [2018-09-14 18:22:50,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:22:50,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:22:50,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:22:50,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:22:50,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:22:26" (1/3) ... [2018-09-14 18:22:50,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68985a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:22:50, skipping insertion in model container [2018-09-14 18:22:50,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:30" (2/3) ... [2018-09-14 18:22:50,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68985a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:22:50, skipping insertion in model container [2018-09-14 18:22:50,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:22:50" (3/3) ... [2018-09-14 18:22:50,911 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label30_true-unreach-call.c [2018-09-14 18:22:50,921 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:22:50,931 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:22:51,016 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:22:51,017 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:22:51,017 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:22:51,017 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:22:51,017 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:22:51,017 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:22:51,017 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:22:51,017 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:22:51,018 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:22:51,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:22:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-14 18:22:51,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:22:51,094 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] [2018-09-14 18:22:51,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:22:51,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1703893274, now seen corresponding path program 1 times [2018-09-14 18:22:51,104 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:22:51,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:51,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:22:51,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:51,154 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:22:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:22:51,590 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:22:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:22:51,711 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:22:51,712 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 18:22:51,712 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:22:51,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:22:51,733 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:22:51,734 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:22:51,737 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-14 18:23:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:09,976 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-09-14 18:23:09,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:23:09,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-09-14 18:23:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:10,026 INFO L225 Difference]: With dead ends: 4999 [2018-09-14 18:23:10,026 INFO L226 Difference]: Without dead ends: 3219 [2018-09-14 18:23:10,039 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 [2018-09-14 18:23:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-09-14 18:23:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-09-14 18:23:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-14 18:23:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-09-14 18:23:10,263 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 55 [2018-09-14 18:23:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:10,264 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-09-14 18:23:10,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:23:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-09-14 18:23:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-14 18:23:10,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:10,273 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] [2018-09-14 18:23:10,273 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1692857214, now seen corresponding path program 1 times [2018-09-14 18:23:10,274 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:10,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:10,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:10,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:10,275 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:23:10,565 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:23:10,565 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:23:10,565 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:10,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:23:10,568 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:23:10,568 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:23:10,568 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-09-14 18:23:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:44,068 INFO L93 Difference]: Finished difference Result 10726 states and 19725 transitions. [2018-09-14 18:23:44,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:23:44,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-09-14 18:23:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:44,115 INFO L225 Difference]: With dead ends: 10726 [2018-09-14 18:23:44,115 INFO L226 Difference]: Without dead ends: 7517 [2018-09-14 18:23:44,127 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:23:44,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2018-09-14 18:23:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 7482. [2018-09-14 18:23:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7482 states. [2018-09-14 18:23:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 12419 transitions. [2018-09-14 18:23:44,361 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 12419 transitions. Word has length 127 [2018-09-14 18:23:44,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:44,362 INFO L480 AbstractCegarLoop]: Abstraction has 7482 states and 12419 transitions. [2018-09-14 18:23:44,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:23:44,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 12419 transitions. [2018-09-14 18:23:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-14 18:23:44,373 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:44,377 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] [2018-09-14 18:23:44,377 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:44,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2052765116, now seen corresponding path program 1 times [2018-09-14 18:23:44,378 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:44,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:44,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:44,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:44,381 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:23:44,838 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:23:44,839 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:23:44,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:44,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:23:44,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:23:44,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:23:44,840 INFO L87 Difference]: Start difference. First operand 7482 states and 12419 transitions. Second operand 6 states. [2018-09-14 18:24:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:24:36,203 INFO L93 Difference]: Finished difference Result 28463 states and 48864 transitions. [2018-09-14 18:24:36,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 18:24:36,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-09-14 18:24:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:24:36,309 INFO L225 Difference]: With dead ends: 28463 [2018-09-14 18:24:36,309 INFO L226 Difference]: Without dead ends: 20987 [2018-09-14 18:24:36,358 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 18:24:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20987 states. [2018-09-14 18:24:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20987 to 20893. [2018-09-14 18:24:36,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20893 states. [2018-09-14 18:24:36,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20893 states to 20893 states and 30702 transitions. [2018-09-14 18:24:36,891 INFO L78 Accepts]: Start accepts. Automaton has 20893 states and 30702 transitions. Word has length 145 [2018-09-14 18:24:36,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:24:36,891 INFO L480 AbstractCegarLoop]: Abstraction has 20893 states and 30702 transitions. [2018-09-14 18:24:36,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:24:36,892 INFO L276 IsEmpty]: Start isEmpty. Operand 20893 states and 30702 transitions. [2018-09-14 18:24:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-14 18:24:36,901 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:24:36,901 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] [2018-09-14 18:24:36,902 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:24:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1705394297, now seen corresponding path program 1 times [2018-09-14 18:24:36,902 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:24:36,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:36,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:36,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:36,904 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:24:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:37,267 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:24:37,267 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:24:37,267 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:24:37,268 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:24:37,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:24:37,269 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:24:37,269 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:24:37,269 INFO L87 Difference]: Start difference. First operand 20893 states and 30702 transitions. Second operand 5 states. [2018-09-14 18:25:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:00,399 INFO L93 Difference]: Finished difference Result 61961 states and 96433 transitions. [2018-09-14 18:25:00,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:25:00,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2018-09-14 18:25:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:25:00,551 INFO L225 Difference]: With dead ends: 61961 [2018-09-14 18:25:00,551 INFO L226 Difference]: Without dead ends: 41074 [2018-09-14 18:25:00,605 INFO L604 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 [2018-09-14 18:25:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41074 states. [2018-09-14 18:25:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41074 to 39994. [2018-09-14 18:25:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39994 states. [2018-09-14 18:25:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39994 states to 39994 states and 56218 transitions. [2018-09-14 18:25:01,547 INFO L78 Accepts]: Start accepts. Automaton has 39994 states and 56218 transitions. Word has length 190 [2018-09-14 18:25:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:25:01,548 INFO L480 AbstractCegarLoop]: Abstraction has 39994 states and 56218 transitions. [2018-09-14 18:25:01,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:25:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 39994 states and 56218 transitions. [2018-09-14 18:25:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-14 18:25:01,559 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:01,559 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] [2018-09-14 18:25:01,559 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:01,560 INFO L82 PathProgramCache]: Analyzing trace with hash -680528982, now seen corresponding path program 1 times [2018-09-14 18:25:01,560 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:01,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:01,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:01,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:01,561 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 96 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:25:02,049 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:25:02,050 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 [2018-09-14 18:25:02,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:02,073 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:25:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:02,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:25:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-14 18:25:02,457 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:25:02,767 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-14 18:25:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 96 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:25:03,398 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:25:03,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-14 18:25:03,399 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:03,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:25:03,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:25:03,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:25:03,400 INFO L87 Difference]: Start difference. First operand 39994 states and 56218 transitions. Second operand 5 states. [2018-09-14 18:25:29,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:29,144 INFO L93 Difference]: Finished difference Result 121319 states and 180751 transitions. [2018-09-14 18:25:29,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:25:29,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-09-14 18:25:29,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:25:29,494 INFO L225 Difference]: With dead ends: 121319 [2018-09-14 18:25:29,494 INFO L226 Difference]: Without dead ends: 81331 [2018-09-14 18:25:29,641 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 [2018-09-14 18:25:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81331 states. [2018-09-14 18:25:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81331 to 79704. [2018-09-14 18:25:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79704 states. [2018-09-14 18:25:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79704 states to 79704 states and 110285 transitions. [2018-09-14 18:25:31,466 INFO L78 Accepts]: Start accepts. Automaton has 79704 states and 110285 transitions. Word has length 210 [2018-09-14 18:25:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:25:31,466 INFO L480 AbstractCegarLoop]: Abstraction has 79704 states and 110285 transitions. [2018-09-14 18:25:31,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:25:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 79704 states and 110285 transitions. [2018-09-14 18:25:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-09-14 18:25:31,472 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:31,472 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] [2018-09-14 18:25:31,473 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:31,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1171034016, now seen corresponding path program 1 times [2018-09-14 18:25:31,473 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:31,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:31,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:31,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:31,475 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:31,709 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:25:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 96 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:25:32,101 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:25:32,101 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 [2018-09-14 18:25:32,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:32,116 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:25:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:32,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:25:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-14 18:25:32,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:25:32,886 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 18:25:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 96 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:25:33,233 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:25:33,233 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 18:25:33,233 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:33,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:25:33,237 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:25:33,237 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 18:25:33,237 INFO L87 Difference]: Start difference. First operand 79704 states and 110285 transitions. Second operand 5 states. [2018-09-14 18:25:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:59,460 INFO L93 Difference]: Finished difference Result 246250 states and 381384 transitions. [2018-09-14 18:25:59,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:25:59,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2018-09-14 18:25:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:00,148 INFO L225 Difference]: With dead ends: 246250 [2018-09-14 18:26:00,149 INFO L226 Difference]: Without dead ends: 166552 [2018-09-14 18:26:00,445 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 446 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-14 18:26:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166552 states. [2018-09-14 18:26:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166552 to 164784. [2018-09-14 18:26:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164784 states. [2018-09-14 18:26:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164784 states to 164784 states and 235595 transitions. [2018-09-14 18:26:04,761 INFO L78 Accepts]: Start accepts. Automaton has 164784 states and 235595 transitions. Word has length 226 [2018-09-14 18:26:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:26:04,761 INFO L480 AbstractCegarLoop]: Abstraction has 164784 states and 235595 transitions. [2018-09-14 18:26:04,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:26:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 164784 states and 235595 transitions. [2018-09-14 18:26:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-09-14 18:26:04,779 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:26:04,780 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] [2018-09-14 18:26:04,780 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:26:04,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1801656800, now seen corresponding path program 1 times [2018-09-14 18:26:04,781 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:26:04,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:04,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:04,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:04,783 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:26:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 18:26:05,551 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:26:05,551 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 [2018-09-14 18:26:05,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:05,563 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:26:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:05,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:26:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-14 18:26:07,256 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:26:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 18:26:07,694 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:26:07,694 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 [2018-09-14 18:26:07,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:07,711 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:26:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:07,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:26:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-14 18:26:08,222 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:26:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 246 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 18:26:08,473 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 18:26:08,474 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-14 18:26:08,474 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 18:26:08,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 18:26:08,475 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 18:26:08,475 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-14 18:26:08,475 INFO L87 Difference]: Start difference. First operand 164784 states and 235595 transitions. Second operand 9 states. Received shutdown request... [2018-09-14 18:26:18,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 18:26:18,479 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:26:18,484 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:26:18,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:26:18 BoogieIcfgContainer [2018-09-14 18:26:18,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:26:18,485 INFO L168 Benchmark]: Toolchain (without parser) took 231753.80 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -548.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,486 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-14 18:26:18,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3668.88 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 194.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -112.7 MB). Peak memory consumption was 493.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 1445.62 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 827.3 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -847.8 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,489 INFO L168 Benchmark]: Boogie Preprocessor took 691.31 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 99.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,489 INFO L168 Benchmark]: RCFGBuilder took 18360.26 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 274.7 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 83.3 MB). Peak memory consumption was 952.3 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,490 INFO L168 Benchmark]: TraceAbstraction took 207580.40 ms. Allocated memory was 2.8 GB in the beginning and 3.4 GB in the end (delta: 625.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 229.8 MB). Peak memory consumption was 854.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:18,499 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3668.88 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 194.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -112.7 MB). Peak memory consumption was 493.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1445.62 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 827.3 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -847.8 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 691.31 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 99.3 MB). Peak memory consumption was 99.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18360.26 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 274.7 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 83.3 MB). Peak memory consumption was 952.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207580.40 ms. Allocated memory was 2.8 GB in the beginning and 3.4 GB in the end (delta: 625.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 229.8 MB). Peak memory consumption was 854.7 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 (164784states) and FLOYD_HOARE automaton (currently 30 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (32498 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 207.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 190.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3640 SDtfs, 40168 SDslu, 4851 SDs, 0 SdLazy, 68593 SolverSat, 15536 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 164.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2777 GetRequests, 2687 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164784occurred 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: 8.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4608 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.4s 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-0-2018-09-14_18-26-18-514.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-0-2018-09-14_18-26-18-514.csv Completed graceful shutdown