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/Problem02_label40_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:30:49,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:30:49,104 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:30:49,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:30:49,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:30:49,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:30:49,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:30:49,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:30:49,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:30:49,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:30:49,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:30:49,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:30:49,126 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:30:49,127 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:30:49,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:30:49,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:30:49,130 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:30:49,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:30:49,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:30:49,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:30:49,137 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:30:49,138 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:30:49,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:30:49,149 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 19:30:49,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:30:49,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:30:49,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:30:49,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:30:49,185 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:30:49,185 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:30:49,185 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:30:49,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:30:49,186 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:30:49,186 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:30:49,186 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:30:49,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:30:49,190 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:30:49,191 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:30:49,191 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:30:49,191 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:30:49,191 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:30:49,192 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:30:49,192 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:30:49,192 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:30:49,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:30:49,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:30:49,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:30:49,194 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:30:49,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:30:49,194 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:30:49,195 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:30:49,195 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:30:49,195 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:30:49,195 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:30:49,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:30:49,196 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:30:49,196 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:30:49,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:30:49,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:30:49,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:30:49,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:30:49,268 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:30:49,268 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:30:49,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c [2018-10-24 19:30:49,340 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02c4b2cba/83cab53acba8451da08975a8261624da/FLAG61d5d97ce [2018-10-24 19:30:49,989 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:30:49,990 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c [2018-10-24 19:30:50,019 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02c4b2cba/83cab53acba8451da08975a8261624da/FLAG61d5d97ce [2018-10-24 19:30:50,050 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/02c4b2cba/83cab53acba8451da08975a8261624da [2018-10-24 19:30:50,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:30:50,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:30:50,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:30:50,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:30:50,070 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:30:50,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fce525c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50, skipping insertion in model container [2018-10-24 19:30:50,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:30:50,144 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:30:50,556 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:30:50,568 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:30:50,731 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:30:50,749 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:30:50,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50 WrapperNode [2018-10-24 19:30:50,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:30:50,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:30:50,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:30:50,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:30:50,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:30:50,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:30:50,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:30:50,942 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:30:50,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:50,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:51,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:51,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:51,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (1/1) ... [2018-10-24 19:30:51,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:30:51,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:30:51,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:30:51,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:30:51,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (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 19:30:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:30:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:30:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:30:51,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:30:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:30:51,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:30:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:30:51,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:30:54,469 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:30:54,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:30:54 BoogieIcfgContainer [2018-10-24 19:30:54,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:30:54,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:30:54,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:30:54,475 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:30:54,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:30:50" (1/3) ... [2018-10-24 19:30:54,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a61dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:30:54, skipping insertion in model container [2018-10-24 19:30:54,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:30:50" (2/3) ... [2018-10-24 19:30:54,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a61dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:30:54, skipping insertion in model container [2018-10-24 19:30:54,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:30:54" (3/3) ... [2018-10-24 19:30:54,479 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label40_true-unreach-call_false-termination.c [2018-10-24 19:30:54,493 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:30:54,502 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:30:54,520 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:30:54,558 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:30:54,558 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:30:54,559 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:30:54,559 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:30:54,559 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:30:54,559 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:30:54,559 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:30:54,560 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:30:54,587 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:30:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 19:30:54,600 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:30:54,602 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, 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 19:30:54,604 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:30:54,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:30:54,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1390549688, now seen corresponding path program 1 times [2018-10-24 19:30:54,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:30:54,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:30:54,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:30:54,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:30:54,668 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:30:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:30:55,279 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:30:55,546 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 19:30:55,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:30:55,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:30:55,550 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:30:55,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:30:55,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:30:55,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:30:55,582 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 4 states. [2018-10-24 19:30:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:30:58,140 INFO L93 Difference]: Finished difference Result 788 states and 1373 transitions. [2018-10-24 19:30:58,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:30:58,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2018-10-24 19:30:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:30:58,166 INFO L225 Difference]: With dead ends: 788 [2018-10-24 19:30:58,166 INFO L226 Difference]: Without dead ends: 545 [2018-10-24 19:30:58,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:30:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2018-10-24 19:30:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 383. [2018-10-24 19:30:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-10-24 19:30:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 631 transitions. [2018-10-24 19:30:58,264 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 631 transitions. Word has length 96 [2018-10-24 19:30:58,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:30:58,265 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 631 transitions. [2018-10-24 19:30:58,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:30:58,266 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 631 transitions. [2018-10-24 19:30:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 19:30:58,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:30:58,273 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:30:58,273 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:30:58,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:30:58,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1279566395, now seen corresponding path program 1 times [2018-10-24 19:30:58,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:30:58,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:30:58,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:30:58,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:30:58,276 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:30:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:30:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:30:58,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:30:58,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:30:58,496 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:30:58,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:30:58,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:30:58,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:30:58,499 INFO L87 Difference]: Start difference. First operand 383 states and 631 transitions. Second operand 4 states. [2018-10-24 19:31:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:31:00,216 INFO L93 Difference]: Finished difference Result 1346 states and 2358 transitions. [2018-10-24 19:31:00,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:31:00,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-24 19:31:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:31:00,233 INFO L225 Difference]: With dead ends: 1346 [2018-10-24 19:31:00,233 INFO L226 Difference]: Without dead ends: 969 [2018-10-24 19:31:00,238 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 19:31:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2018-10-24 19:31:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 965. [2018-10-24 19:31:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2018-10-24 19:31:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1511 transitions. [2018-10-24 19:31:00,310 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1511 transitions. Word has length 105 [2018-10-24 19:31:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:31:00,310 INFO L481 AbstractCegarLoop]: Abstraction has 965 states and 1511 transitions. [2018-10-24 19:31:00,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:31:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1511 transitions. [2018-10-24 19:31:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 19:31:00,317 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:31:00,317 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:31:00,318 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:31:00,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:31:00,318 INFO L82 PathProgramCache]: Analyzing trace with hash 366365076, now seen corresponding path program 1 times [2018-10-24 19:31:00,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:31:00,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:31:00,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:31:00,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:31:00,320 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:31:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:31:00,577 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:31:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 19:31:00,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:31:00,612 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:31:00,613 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2018-10-24 19:31:00,615 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:31:00,731 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:31:00,732 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:31:12,625 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:31:12,627 INFO L272 AbstractInterpreter]: Visited 97 different actions 97 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-10-24 19:31:12,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:31:12,643 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:31:17,028 INFO L232 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 81.04% of their original sizes. [2018-10-24 19:31:17,028 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:31:20,678 INFO L413 sIntCurrentIteration]: We have 115 unified AI predicates [2018-10-24 19:31:20,678 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:31:20,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:31:20,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-10-24 19:31:20,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:31:20,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 19:31:20,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 19:31:20,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-10-24 19:31:20,681 INFO L87 Difference]: Start difference. First operand 965 states and 1511 transitions. Second operand 15 states. [2018-10-24 19:33:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:33:04,752 INFO L93 Difference]: Finished difference Result 2224 states and 3545 transitions. [2018-10-24 19:33:04,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 19:33:04,753 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2018-10-24 19:33:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:33:04,761 INFO L225 Difference]: With dead ends: 2224 [2018-10-24 19:33:04,761 INFO L226 Difference]: Without dead ends: 1265 [2018-10-24 19:33:04,766 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2018-10-24 19:33:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2018-10-24 19:33:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1112. [2018-10-24 19:33:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2018-10-24 19:33:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1667 transitions. [2018-10-24 19:33:04,895 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1667 transitions. Word has length 116 [2018-10-24 19:33:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:33:04,895 INFO L481 AbstractCegarLoop]: Abstraction has 1112 states and 1667 transitions. [2018-10-24 19:33:04,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-24 19:33:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1667 transitions. [2018-10-24 19:33:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 19:33:04,899 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:33:04,900 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:04,900 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:33:04,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:33:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1503068405, now seen corresponding path program 1 times [2018-10-24 19:33:04,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:33:04,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:33:04,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:33:04,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:33:04,902 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:33:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:33:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:33:05,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:33:05,079 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:33:05,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-10-24 19:33:05,080 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:33:05,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:33:05,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:33:51,538 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:33:51,539 INFO L272 AbstractInterpreter]: Visited 101 different actions 392 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-10-24 19:33:51,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:33:51,545 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:33:56,234 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 81.94% of their original sizes. [2018-10-24 19:33:56,234 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:34:53,693 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:34:53,698 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:34:53,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:34:53 BoogieIcfgContainer [2018-10-24 19:34:53,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:34:53,700 INFO L168 Benchmark]: Toolchain (without parser) took 243636.45 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 1.6 GB in the end (delta: -165.7 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,701 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:34:53,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,704 INFO L168 Benchmark]: Boogie Preprocessor took 113.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,705 INFO L168 Benchmark]: RCFGBuilder took 3414.65 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: 116.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,706 INFO L168 Benchmark]: TraceAbstraction took 239227.90 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 507.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 19:34:53,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 684.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 190.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3414.65 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: 116.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239227.90 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 507.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 439]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 439). Cancelled while BasicCegarLoop was analyzing trace of length 127 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 239.1s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 108.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 778 SDtfs, 2014 SDslu, 791 SDs, 0 SdLazy, 2850 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 139 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1112occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 58.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9918355855855859 AbsIntWeakeningRatio, 0.30833333333333335 AbsIntAvgWeakeningVarsNumRemoved, 1285.7416666666666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 319 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 133445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 27/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown