java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:05:01,896 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:05:01,898 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:05:01,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:05:01,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:05:01,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:05:01,913 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:05:01,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:05:01,923 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:05:01,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:05:01,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:05:01,925 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:05:01,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:05:01,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:05:01,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:05:01,935 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:05:01,936 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:05:01,938 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:05:01,940 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:05:01,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:05:01,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:05:01,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:05:01,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:05:01,957 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 02:05:01,988 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:05:01,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:05:01,993 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:05:01,993 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:05:01,993 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:05:01,993 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:05:01,994 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:05:01,994 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:05:01,994 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:05:01,994 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:05:01,994 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:05:01,995 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:05:01,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:05:01,996 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:05:01,997 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:05:01,997 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:05:01,997 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:05:01,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:05:01,998 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:05:01,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:05:01,998 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:05:01,998 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:05:01,998 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:05:02,000 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:05:02,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:05:02,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:05:02,001 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:05:02,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:05:02,001 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:05:02,001 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:05:02,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:05:02,002 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:05:02,002 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:05:02,002 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:05:02,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:05:02,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:05:02,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:05:02,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:05:02,074 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:05:02,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c [2018-10-24 02:05:02,148 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3d7d9a571/2a6ba313b94e4f30b69d2df1d40bb7f6/FLAG9238447cd [2018-10-24 02:05:02,889 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:05:02,891 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c [2018-10-24 02:05:02,921 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3d7d9a571/2a6ba313b94e4f30b69d2df1d40bb7f6/FLAG9238447cd [2018-10-24 02:05:02,942 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3d7d9a571/2a6ba313b94e4f30b69d2df1d40bb7f6 [2018-10-24 02:05:02,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:05:02,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:05:02,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:05:02,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:05:02,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:05:02,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:05:02" (1/1) ... [2018-10-24 02:05:02,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab4c919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:02, skipping insertion in model container [2018-10-24 02:05:02,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:05:02" (1/1) ... [2018-10-24 02:05:02,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:05:03,127 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:05:04,217 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:05:04,222 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:05:04,613 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:05:04,639 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:05:04,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04 WrapperNode [2018-10-24 02:05:04,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:05:04,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:05:04,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:05:04,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:05:04,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:04,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:05:05,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:05:05,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:05:05,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:05:05,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... [2018-10-24 02:05:05,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:05:05,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:05:05,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:05:05,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:05:05,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:05:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:05:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:05:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:05:05,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:05:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:05:05,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:05:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:05:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:05:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:05:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:05:16,928 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:05:16,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:05:16 BoogieIcfgContainer [2018-10-24 02:05:16,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:05:16,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:05:16,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:05:16,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:05:16,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:05:02" (1/3) ... [2018-10-24 02:05:16,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea6237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:05:16, skipping insertion in model container [2018-10-24 02:05:16,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:04" (2/3) ... [2018-10-24 02:05:16,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea6237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:05:16, skipping insertion in model container [2018-10-24 02:05:16,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:05:16" (3/3) ... [2018-10-24 02:05:16,938 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label29_true-unreach-call.c [2018-10-24 02:05:16,949 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:05:16,960 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:05:16,980 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:05:17,024 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:05:17,024 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:05:17,024 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:05:17,024 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:05:17,025 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:05:17,025 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:05:17,025 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:05:17,025 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:05:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 02:05:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-24 02:05:17,075 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:05:17,076 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:05:17,078 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:05:17,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:17,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1965894100, now seen corresponding path program 1 times [2018-10-24 02:05:17,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:05:17,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:17,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:17,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:17,147 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:05:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:05:17,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:05:17,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:05:17,557 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:05:17,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:05:17,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:05:17,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:05:17,583 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 02:05:26,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:05:26,617 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-24 02:05:26,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:05:26,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-10-24 02:05:26,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:05:26,656 INFO L225 Difference]: With dead ends: 2166 [2018-10-24 02:05:26,657 INFO L226 Difference]: Without dead ends: 1556 [2018-10-24 02:05:26,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:05:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-24 02:05:26,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-24 02:05:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-24 02:05:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-24 02:05:26,832 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 72 [2018-10-24 02:05:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:05:26,833 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-24 02:05:26,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:05:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-24 02:05:26,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 02:05:26,850 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:05:26,851 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 02:05:26,851 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:05:26,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:26,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1274618542, now seen corresponding path program 1 times [2018-10-24 02:05:26,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:05:26,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:26,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:26,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:26,856 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:05:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:05:27,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:05:27,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:05:27,197 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:05:27,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:05:27,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:05:27,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:05:27,200 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-24 02:05:35,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:05:35,183 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-24 02:05:35,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:05:35,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-10-24 02:05:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:05:35,202 INFO L225 Difference]: With dead ends: 3059 [2018-10-24 02:05:35,202 INFO L226 Difference]: Without dead ends: 1997 [2018-10-24 02:05:35,207 INFO L605 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 [2018-10-24 02:05:35,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-24 02:05:35,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-24 02:05:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-24 02:05:35,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-24 02:05:35,307 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 148 [2018-10-24 02:05:35,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:05:35,308 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-24 02:05:35,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:05:35,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-24 02:05:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-24 02:05:35,317 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:05:35,318 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 02:05:35,318 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:05:35,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash -73480886, now seen corresponding path program 1 times [2018-10-24 02:05:35,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:05:35,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:35,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:35,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:35,320 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:05:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:35,648 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:05:35,855 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:05:35,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:05:35,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:05:35,856 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:05:35,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:05:35,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:05:35,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:05:35,858 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-24 02:05:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:05:44,154 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-10-24 02:05:44,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:05:44,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-10-24 02:05:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:05:44,174 INFO L225 Difference]: With dead ends: 4880 [2018-10-24 02:05:44,174 INFO L226 Difference]: Without dead ends: 2911 [2018-10-24 02:05:44,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:05:44,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-24 02:05:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-10-24 02:05:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-24 02:05:44,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-10-24 02:05:44,260 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 152 [2018-10-24 02:05:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:05:44,261 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-10-24 02:05:44,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:05:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-10-24 02:05:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-24 02:05:44,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:05:44,265 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 02:05:44,265 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:05:44,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:44,265 INFO L82 PathProgramCache]: Analyzing trace with hash 363729319, now seen corresponding path program 1 times [2018-10-24 02:05:44,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:05:44,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:44,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:44,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:44,267 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:05:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:05:44,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:05:44,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:05:44,533 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:05:44,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:05:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:05:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:05:44,534 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-10-24 02:05:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:05:50,181 INFO L93 Difference]: Finished difference Result 6193 states and 8504 transitions. [2018-10-24 02:05:50,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:05:50,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2018-10-24 02:05:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:05:50,205 INFO L225 Difference]: With dead ends: 6193 [2018-10-24 02:05:50,205 INFO L226 Difference]: Without dead ends: 3319 [2018-10-24 02:05:50,217 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:05:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2018-10-24 02:05:50,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3319. [2018-10-24 02:05:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2018-10-24 02:05:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4342 transitions. [2018-10-24 02:05:50,295 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4342 transitions. Word has length 182 [2018-10-24 02:05:50,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:05:50,296 INFO L481 AbstractCegarLoop]: Abstraction has 3319 states and 4342 transitions. [2018-10-24 02:05:50,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:05:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4342 transitions. [2018-10-24 02:05:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 02:05:50,300 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:05:50,301 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:05:50,301 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:05:50,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:50,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1344568352, now seen corresponding path program 1 times [2018-10-24 02:05:50,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:05:50,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:50,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:50,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:05:50,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:05:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 02:05:50,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:05:50,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:05:50,481 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:05:50,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:05:50,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:05:50,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:05:50,482 INFO L87 Difference]: Start difference. First operand 3319 states and 4342 transitions. Second operand 4 states. [2018-10-24 02:06:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:06:01,582 INFO L93 Difference]: Finished difference Result 11927 states and 15987 transitions. [2018-10-24 02:06:01,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:06:01,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 236 [2018-10-24 02:06:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:06:01,618 INFO L225 Difference]: With dead ends: 11927 [2018-10-24 02:06:01,618 INFO L226 Difference]: Without dead ends: 8614 [2018-10-24 02:06:01,631 INFO L605 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 [2018-10-24 02:06:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2018-10-24 02:06:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 8610. [2018-10-24 02:06:01,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8610 states. [2018-10-24 02:06:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 10531 transitions. [2018-10-24 02:06:01,827 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 10531 transitions. Word has length 236 [2018-10-24 02:06:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:06:01,827 INFO L481 AbstractCegarLoop]: Abstraction has 8610 states and 10531 transitions. [2018-10-24 02:06:01,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:06:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 10531 transitions. [2018-10-24 02:06:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-10-24 02:06:01,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:06:01,836 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:06:01,836 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:06:01,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:06:01,836 INFO L82 PathProgramCache]: Analyzing trace with hash -522914045, now seen corresponding path program 1 times [2018-10-24 02:06:01,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:06:01,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:01,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:06:01,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:01,838 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:06:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:06:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 130 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:06:02,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:06:02,475 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:06:02,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-10-24 02:06:02,478 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1182], [1186], [1188], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:06:02,572 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:06:02,572 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:06:05,343 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:06:05,588 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:06:05,590 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 02:06:05,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:06:05,604 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:06:08,091 INFO L232 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 75.93% of their original sizes. [2018-10-24 02:06:08,091 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:06:08,657 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:06:08,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:06:08,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 02:06:08,658 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:06:08,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 02:06:08,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 02:06:08,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:06:08,660 INFO L87 Difference]: Start difference. First operand 8610 states and 10531 transitions. Second operand 8 states. [2018-10-24 02:08:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:38,009 INFO L93 Difference]: Finished difference Result 17650 states and 21524 transitions. [2018-10-24 02:08:38,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:08:38,010 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 259 [2018-10-24 02:08:38,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:38,044 INFO L225 Difference]: With dead ends: 17650 [2018-10-24 02:08:38,044 INFO L226 Difference]: Without dead ends: 9046 [2018-10-24 02:08:38,062 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 02:08:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2018-10-24 02:08:38,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 9044. [2018-10-24 02:08:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9044 states. [2018-10-24 02:08:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 10976 transitions. [2018-10-24 02:08:38,248 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 10976 transitions. Word has length 259 [2018-10-24 02:08:38,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:38,248 INFO L481 AbstractCegarLoop]: Abstraction has 9044 states and 10976 transitions. [2018-10-24 02:08:38,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 02:08:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 10976 transitions. [2018-10-24 02:08:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-10-24 02:08:38,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:38,265 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:08:38,265 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:38,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:38,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1507360391, now seen corresponding path program 1 times [2018-10-24 02:08:38,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:38,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:38,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:38,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:38,267 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:38,636 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 02:08:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 02:08:38,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:08:38,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:08:38,682 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:08:38,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:08:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:08:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:08:38,683 INFO L87 Difference]: Start difference. First operand 9044 states and 10976 transitions. Second operand 4 states. [2018-10-24 02:08:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:46,250 INFO L93 Difference]: Finished difference Result 22967 states and 28406 transitions. [2018-10-24 02:08:46,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:08:46,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2018-10-24 02:08:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:46,305 INFO L225 Difference]: With dead ends: 22967 [2018-10-24 02:08:46,305 INFO L226 Difference]: Without dead ends: 14363 [2018-10-24 02:08:46,337 INFO L605 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 [2018-10-24 02:08:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14363 states. [2018-10-24 02:08:46,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14363 to 14351. [2018-10-24 02:08:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14351 states. [2018-10-24 02:08:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14351 states to 14351 states and 17144 transitions. [2018-10-24 02:08:46,588 INFO L78 Accepts]: Start accepts. Automaton has 14351 states and 17144 transitions. Word has length 302 [2018-10-24 02:08:46,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:46,589 INFO L481 AbstractCegarLoop]: Abstraction has 14351 states and 17144 transitions. [2018-10-24 02:08:46,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:08:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 14351 states and 17144 transitions. [2018-10-24 02:08:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-24 02:08:46,600 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:46,600 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:08:46,601 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:46,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:46,601 INFO L82 PathProgramCache]: Analyzing trace with hash -959165458, now seen corresponding path program 1 times [2018-10-24 02:08:46,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:46,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:46,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:46,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:46,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 205 proven. 142 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 02:08:47,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:47,009 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:08:47,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-10-24 02:08:47,010 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1182], [1186], [1188], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:08:47,015 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:08:47,016 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:08:47,858 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 02:08:53,337 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 02:08:53,338 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 02:08:53,339 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 02:08:53,340 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:53,340 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 02:08:53,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:53,351 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:08:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:53,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:08:53,495 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 02:08:53,696 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:08:53,697 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:08:53,704 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:08:53,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:08:53 BoogieIcfgContainer [2018-10-24 02:08:53,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:08:53,705 INFO L168 Benchmark]: Toolchain (without parser) took 230746.64 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 282.7 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,707 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 02:08:53,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1677.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 476.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -907.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,710 INFO L168 Benchmark]: Boogie Preprocessor took 250.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,711 INFO L168 Benchmark]: RCFGBuilder took 11561.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 452.3 MB). Peak memory consumption was 452.3 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,712 INFO L168 Benchmark]: TraceAbstraction took 216773.79 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.1 GB in the end (delta: 567.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 02:08:53,717 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1677.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 476.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -907.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 250.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11561.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 452.3 MB). Peak memory consumption was 452.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216773.79 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.1 GB in the end (delta: 567.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 203]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 203). Cancelled while BasicCegarLoop was analyzing trace of length 312 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 216.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 199.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3735 SDtfs, 8690 SDslu, 1892 SDs, 0 SdLazy, 17294 SolverSat, 3516 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 155.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 301 GetRequests, 269 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14351occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9962432915921289 AbsIntWeakeningRatio, 0.10465116279069768 AbsIntAvgWeakeningVarsNumRemoved, 1055.5077519379845 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 559 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1351 NumberOfCodeBlocks, 1351 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1344 ConstructedInterpolants, 0 QuantifiedInterpolants, 992595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 754/826 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown