java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:25:02,924 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:25:02,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:25:02,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:25:02,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:25:02,939 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:25:02,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:25:02,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:25:02,944 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:25:02,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:25:02,946 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:25:02,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:25:02,947 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:25:02,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:25:02,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:25:02,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:25:02,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:25:02,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:25:02,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:25:02,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:25:02,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:25:02,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:25:02,968 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:25:02,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:25:02,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:25:02,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:25:03,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:25:03,001 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:25:03,001 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:25:03,001 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:25:03,001 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:25:03,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:25:03,001 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:25:03,004 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:25:03,004 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:25:03,004 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:25:03,005 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:25:03,005 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:25:03,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:25:03,006 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:25:03,006 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:25:03,006 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:25:03,006 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:25:03,007 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:25:03,007 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:25:03,007 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:25:03,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:25:03,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:25:03,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:25:03,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:25:03,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:25:03,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:25:03,009 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:25:03,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:25:03,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:25:03,010 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:25:03,011 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:25:03,011 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:25:03,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:25:03,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:25:03,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:25:03,095 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:25:03,095 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:25:03,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-11-07 00:25:03,158 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4dd9928/bd27e24830244f63a0398b1fa82e61f4/FLAG5eec7aa16 [2018-11-07 00:25:03,791 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:25:03,792 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-11-07 00:25:03,820 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4dd9928/bd27e24830244f63a0398b1fa82e61f4/FLAG5eec7aa16 [2018-11-07 00:25:03,841 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4dd9928/bd27e24830244f63a0398b1fa82e61f4 [2018-11-07 00:25:03,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:25:03,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:25:03,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:25:03,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:25:03,862 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:25:03,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:03" (1/1) ... [2018-11-07 00:25:03,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4ab46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:03, skipping insertion in model container [2018-11-07 00:25:03,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:03" (1/1) ... [2018-11-07 00:25:03,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:25:03,990 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:25:04,838 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:25:04,843 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:25:05,147 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:25:05,171 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:25:05,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05 WrapperNode [2018-11-07 00:25:05,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:25:05,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:25:05,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:25:05,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:25:05,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:25:05,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:25:05,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:25:05,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:25:05,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... [2018-11-07 00:25:05,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:25:05,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:25:05,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:25:05,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:25:05,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:25:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:25:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:25:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:25:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:25:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:25:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:25:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:25:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:25:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:25:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:25:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:25:11,851 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:25:11,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:11 BoogieIcfgContainer [2018-11-07 00:25:11,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:25:11,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:25:11,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:25:11,857 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:25:11,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:03" (1/3) ... [2018-11-07 00:25:11,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0a3afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:11, skipping insertion in model container [2018-11-07 00:25:11,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:05" (2/3) ... [2018-11-07 00:25:11,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0a3afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:11, skipping insertion in model container [2018-11-07 00:25:11,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:11" (3/3) ... [2018-11-07 00:25:11,861 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label25_false-unreach-call.c [2018-11-07 00:25:11,871 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:25:11,880 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:25:11,898 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:25:11,939 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:25:11,940 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:25:11,940 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:25:11,940 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:25:11,940 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:25:11,940 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:25:11,940 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:25:11,941 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:25:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 00:25:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-07 00:25:11,984 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:11,985 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:11,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:11,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:11,995 INFO L82 PathProgramCache]: Analyzing trace with hash 480203289, now seen corresponding path program 1 times [2018-11-07 00:25:11,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:12,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:12,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:12,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:12,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:12,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:12,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:25:12,452 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:12,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:25:12,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:25:12,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:12,479 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 00:25:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:18,738 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-11-07 00:25:18,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:25:18,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-07 00:25:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:18,769 INFO L225 Difference]: With dead ends: 1550 [2018-11-07 00:25:18,769 INFO L226 Difference]: Without dead ends: 1106 [2018-11-07 00:25:18,781 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-11-07 00:25:18,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-11-07 00:25:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-11-07 00:25:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-11-07 00:25:18,914 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 31 [2018-11-07 00:25:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:18,914 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-11-07 00:25:18,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:25:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-11-07 00:25:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-07 00:25:18,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:18,921 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:18,921 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:18,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:18,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1889968228, now seen corresponding path program 1 times [2018-11-07 00:25:18,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:18,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:18,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:18,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:18,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:19,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:19,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:25:19,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:19,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:25:19,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:25:19,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:25:19,259 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-11-07 00:25:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:24,674 INFO L93 Difference]: Finished difference Result 2248 states and 3762 transitions. [2018-11-07 00:25:24,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:25:24,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-11-07 00:25:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:24,697 INFO L225 Difference]: With dead ends: 2248 [2018-11-07 00:25:24,697 INFO L226 Difference]: Without dead ends: 1492 [2018-11-07 00:25:24,702 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 [2018-11-07 00:25:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2018-11-07 00:25:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1457. [2018-11-07 00:25:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-11-07 00:25:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-11-07 00:25:24,776 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 104 [2018-11-07 00:25:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:24,776 INFO L480 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-11-07 00:25:24,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:25:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-11-07 00:25:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 00:25:24,780 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:24,780 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:24,781 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:24,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:24,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1891777420, now seen corresponding path program 1 times [2018-11-07 00:25:24,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:24,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:24,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:24,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:24,783 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:24,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:24,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:25:24,924 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:24,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:25:24,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:25:24,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:24,926 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-11-07 00:25:29,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:29,947 INFO L93 Difference]: Finished difference Result 5409 states and 8321 transitions. [2018-11-07 00:25:29,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:25:29,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-11-07 00:25:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:29,973 INFO L225 Difference]: With dead ends: 5409 [2018-11-07 00:25:29,973 INFO L226 Difference]: Without dead ends: 3958 [2018-11-07 00:25:29,987 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2018-11-07 00:25:30,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3953. [2018-11-07 00:25:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3953 states. [2018-11-07 00:25:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5491 transitions. [2018-11-07 00:25:30,102 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5491 transitions. Word has length 112 [2018-11-07 00:25:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:30,102 INFO L480 AbstractCegarLoop]: Abstraction has 3953 states and 5491 transitions. [2018-11-07 00:25:30,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:25:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5491 transitions. [2018-11-07 00:25:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 00:25:30,107 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:30,108 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:30,108 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:30,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:30,108 INFO L82 PathProgramCache]: Analyzing trace with hash -105933602, now seen corresponding path program 1 times [2018-11-07 00:25:30,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:30,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:30,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:30,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:30,110 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:30,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:30,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:25:30,402 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:30,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:25:30,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:25:30,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:25:30,404 INFO L87 Difference]: Start difference. First operand 3953 states and 5491 transitions. Second operand 6 states. [2018-11-07 00:25:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:34,280 INFO L93 Difference]: Finished difference Result 9154 states and 12486 transitions. [2018-11-07 00:25:34,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:25:34,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 00:25:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:34,306 INFO L225 Difference]: With dead ends: 9154 [2018-11-07 00:25:34,306 INFO L226 Difference]: Without dead ends: 5207 [2018-11-07 00:25:34,329 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:25:34,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5207 states. [2018-11-07 00:25:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5144. [2018-11-07 00:25:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5144 states. [2018-11-07 00:25:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 6621 transitions. [2018-11-07 00:25:34,456 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 6621 transitions. Word has length 131 [2018-11-07 00:25:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:34,457 INFO L480 AbstractCegarLoop]: Abstraction has 5144 states and 6621 transitions. [2018-11-07 00:25:34,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:25:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 6621 transitions. [2018-11-07 00:25:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-07 00:25:34,460 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:34,461 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 00:25:34,461 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:34,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:34,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1626579703, now seen corresponding path program 1 times [2018-11-07 00:25:34,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:34,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:34,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:34,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:34,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:34,772 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-07 00:25:34,819 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 00:25:34,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:34,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:25:34,820 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:34,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:25:34,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:25:34,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:34,823 INFO L87 Difference]: Start difference. First operand 5144 states and 6621 transitions. Second operand 4 states. [2018-11-07 00:25:39,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:39,224 INFO L93 Difference]: Finished difference Result 16880 states and 22267 transitions. [2018-11-07 00:25:39,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:25:39,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-11-07 00:25:39,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:39,280 INFO L225 Difference]: With dead ends: 16880 [2018-11-07 00:25:39,280 INFO L226 Difference]: Without dead ends: 11742 [2018-11-07 00:25:39,314 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11742 states. [2018-11-07 00:25:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11742 to 11382. [2018-11-07 00:25:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11382 states. [2018-11-07 00:25:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11382 states to 11382 states and 13996 transitions. [2018-11-07 00:25:39,576 INFO L78 Accepts]: Start accepts. Automaton has 11382 states and 13996 transitions. Word has length 186 [2018-11-07 00:25:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:39,577 INFO L480 AbstractCegarLoop]: Abstraction has 11382 states and 13996 transitions. [2018-11-07 00:25:39,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:25:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 11382 states and 13996 transitions. [2018-11-07 00:25:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-11-07 00:25:39,582 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:39,582 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 00:25:39,583 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:39,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:39,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1918161605, now seen corresponding path program 1 times [2018-11-07 00:25:39,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:39,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:39,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:39,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:39,585 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:39,838 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-11-07 00:25:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 00:25:39,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:39,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:25:39,858 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:39,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:25:39,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:25:39,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:25:39,859 INFO L87 Difference]: Start difference. First operand 11382 states and 13996 transitions. Second operand 3 states. [2018-11-07 00:25:42,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:25:42,391 INFO L93 Difference]: Finished difference Result 27453 states and 34715 transitions. [2018-11-07 00:25:42,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:25:42,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-11-07 00:25:42,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:25:42,455 INFO L225 Difference]: With dead ends: 27453 [2018-11-07 00:25:42,455 INFO L226 Difference]: Without dead ends: 16077 [2018-11-07 00:25:42,508 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:25:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16077 states. [2018-11-07 00:25:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16077 to 16063. [2018-11-07 00:25:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16063 states. [2018-11-07 00:25:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16063 states to 16063 states and 20013 transitions. [2018-11-07 00:25:42,982 INFO L78 Accepts]: Start accepts. Automaton has 16063 states and 20013 transitions. Word has length 199 [2018-11-07 00:25:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:25:42,982 INFO L480 AbstractCegarLoop]: Abstraction has 16063 states and 20013 transitions. [2018-11-07 00:25:42,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:25:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 16063 states and 20013 transitions. [2018-11-07 00:25:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-11-07 00:25:42,991 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:42,992 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:25:42,992 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:42,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1276060231, now seen corresponding path program 1 times [2018-11-07 00:25:42,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:42,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:42,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:42,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:42,999 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 00:25:43,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:25:43,674 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:25:43,675 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-11-07 00:25:43,678 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:25:43,769 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:25:43,769 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:25:46,299 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:25:47,053 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:25:47,054 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:25:47,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:47,078 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:25:49,293 INFO L227 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-07 00:25:49,293 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:25:49,873 INFO L415 sIntCurrentIteration]: We unified 211 AI predicates to 211 [2018-11-07 00:25:49,873 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:25:49,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:25:49,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-07 00:25:49,875 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:49,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:25:49,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:25:49,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:25:49,876 INFO L87 Difference]: Start difference. First operand 16063 states and 20013 transitions. Second operand 8 states. [2018-11-07 00:26:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:26:55,318 INFO L93 Difference]: Finished difference Result 32430 states and 40382 transitions. [2018-11-07 00:26:55,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:26:55,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2018-11-07 00:26:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:26:55,376 INFO L225 Difference]: With dead ends: 32430 [2018-11-07 00:26:55,376 INFO L226 Difference]: Without dead ends: 16373 [2018-11-07 00:26:55,423 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:26:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16373 states. [2018-11-07 00:26:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16373 to 16371. [2018-11-07 00:26:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16371 states. [2018-11-07 00:26:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16371 states to 16371 states and 20330 transitions. [2018-11-07 00:26:55,787 INFO L78 Accepts]: Start accepts. Automaton has 16371 states and 20330 transitions. Word has length 212 [2018-11-07 00:26:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:26:55,788 INFO L480 AbstractCegarLoop]: Abstraction has 16371 states and 20330 transitions. [2018-11-07 00:26:55,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:26:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 16371 states and 20330 transitions. [2018-11-07 00:26:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-11-07 00:26:55,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:26:55,799 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:26:55,800 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:26:55,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:26:55,800 INFO L82 PathProgramCache]: Analyzing trace with hash 725845603, now seen corresponding path program 1 times [2018-11-07 00:26:55,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:26:55,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:55,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:26:55,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:55,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:26:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:26:56,895 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 00:26:57,192 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 00:26:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 156 proven. 169 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:26:57,371 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:26:57,371 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:26:57,371 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-11-07 00:26:57,372 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:26:57,378 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:26:57,378 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:26:58,527 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:27:06,079 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:27:06,080 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:27:06,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:27:06,088 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:27:09,638 INFO L227 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 78.85% of their original sizes. [2018-11-07 00:27:09,638 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 00:28:58,453 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:28:58,459 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:28:58,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:28:58 BoogieIcfgContainer [2018-11-07 00:28:58,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:28:58,461 INFO L168 Benchmark]: Toolchain (without parser) took 234607.01 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -357.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,462 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:28:58,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1316.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 218.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -919.7 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,466 INFO L168 Benchmark]: Boogie Preprocessor took 182.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,467 INFO L168 Benchmark]: RCFGBuilder took 6278.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 296.3 MB). Peak memory consumption was 296.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,467 INFO L168 Benchmark]: TraceAbstraction took 226607.06 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 146.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 00:28:58,475 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 1316.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 218.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -919.7 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6278.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 296.3 MB). Peak memory consumption was 296.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226607.06 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 146.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was analyzing trace of length 309 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 226.5s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 93.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2134 SDtfs, 6409 SDslu, 1405 SDs, 0 SdLazy, 12207 SolverSat, 2714 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 251 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16371occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9952821610430305 AbsIntWeakeningRatio, 0.11196911196911197 AbsIntAvgWeakeningVarsNumRemoved, 428.5366795366795 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 823 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 975 NumberOfCodeBlocks, 975 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 372237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 450/452 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown