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/Problem11_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:12:53,078 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:12:53,080 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:12:53,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:12:53,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:12:53,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:12:53,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:12:53,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:12:53,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:12:53,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:12:53,107 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:12:53,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:12:53,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:12:53,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:12:53,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:12:53,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:12:53,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:12:53,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:12:53,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:12:53,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:12:53,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:12:53,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:12:53,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:12:53,129 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:12:53,129 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:12:53,130 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:12:53,131 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:12:53,131 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 21:12:53,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:12:53,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:12:53,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:12:53,154 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:12:53,154 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:12:53,155 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:12:53,155 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:12:53,155 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:12:53,155 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:12:53,155 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:12:53,156 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:12:53,156 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:12:53,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:12:53,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:12:53,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:12:53,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:12:53,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:12:53,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:12:53,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:12:53,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:12:53,159 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:12:53,159 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:12:53,159 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:12:53,160 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:12:53,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:12:53,160 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:12:53,160 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:12:53,160 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:12:53,161 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:12:53,161 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:12:53,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:12:53,161 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:12:53,161 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:12:53,162 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:12:53,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:12:53,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:12:53,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:12:53,228 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:12:53,229 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:12:53,229 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label41_true-unreach-call.c [2018-10-24 21:12:53,291 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f02921535/b6075c9f30214100ba6722517f5491fc/FLAGd245933e8 [2018-10-24 21:12:53,927 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:12:53,928 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label41_true-unreach-call.c [2018-10-24 21:12:53,943 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f02921535/b6075c9f30214100ba6722517f5491fc/FLAGd245933e8 [2018-10-24 21:12:53,961 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f02921535/b6075c9f30214100ba6722517f5491fc [2018-10-24 21:12:53,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:12:53,977 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:12:53,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:53,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:12:53,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:12:53,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:53" (1/1) ... [2018-10-24 21:12:53,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:53, skipping insertion in model container [2018-10-24 21:12:53,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:53" (1/1) ... [2018-10-24 21:12:53,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:12:54,068 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:12:54,684 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:54,696 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:12:54,914 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:54,936 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:12:54,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54 WrapperNode [2018-10-24 21:12:54,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:54,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:54,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:12:54,938 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:12:54,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:54,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:55,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:12:55,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:12:55,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:12:55,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (1/1) ... [2018-10-24 21:12:55,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:12:55,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:12:55,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:12:55,405 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:12:55,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (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 21:12:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:12:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:12:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:12:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:12:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:12:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:12:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:12:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:13:00,300 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:13:00,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:13:00 BoogieIcfgContainer [2018-10-24 21:13:00,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:13:00,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:13:00,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:13:00,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:13:00,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:12:53" (1/3) ... [2018-10-24 21:13:00,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:13:00, skipping insertion in model container [2018-10-24 21:13:00,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:54" (2/3) ... [2018-10-24 21:13:00,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:13:00, skipping insertion in model container [2018-10-24 21:13:00,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:13:00" (3/3) ... [2018-10-24 21:13:00,318 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label41_true-unreach-call.c [2018-10-24 21:13:00,329 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:13:00,346 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:13:00,367 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:13:00,429 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:13:00,429 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:13:00,430 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:13:00,430 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:13:00,430 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:13:00,430 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:13:00,431 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:13:00,431 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:13:00,478 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:13:00,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 21:13:00,489 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:00,490 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] [2018-10-24 21:13:00,493 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:00,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:00,500 INFO L82 PathProgramCache]: Analyzing trace with hash -146636772, now seen corresponding path program 1 times [2018-10-24 21:13:00,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:00,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:00,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:00,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:00,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:01,035 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:13:01,137 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 21:13:01,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:13:01,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:13:01,140 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:01,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:13:01,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:13:01,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:13:01,165 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-24 21:13:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:03,275 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-24 21:13:03,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:13:03,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-10-24 21:13:03,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:03,299 INFO L225 Difference]: With dead ends: 782 [2018-10-24 21:13:03,300 INFO L226 Difference]: Without dead ends: 487 [2018-10-24 21:13:03,310 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:13:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-24 21:13:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-24 21:13:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-24 21:13:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-10-24 21:13:03,408 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 28 [2018-10-24 21:13:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:03,409 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-10-24 21:13:03,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:13:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-10-24 21:13:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-24 21:13:03,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:03,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:03,416 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:03,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:03,417 INFO L82 PathProgramCache]: Analyzing trace with hash -425752825, now seen corresponding path program 1 times [2018-10-24 21:13:03,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:03,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:03,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:03,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:03,419 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:13:04,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:13:04,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 21:13:04,029 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:04,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:13:04,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:13:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:13:04,032 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-10-24 21:13:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:10,941 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-10-24 21:13:10,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 21:13:10,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2018-10-24 21:13:10,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:10,960 INFO L225 Difference]: With dead ends: 1760 [2018-10-24 21:13:10,960 INFO L226 Difference]: Without dead ends: 1284 [2018-10-24 21:13:10,967 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 21:13:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-10-24 21:13:11,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-10-24 21:13:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-10-24 21:13:11,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-10-24 21:13:11,077 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 103 [2018-10-24 21:13:11,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:11,078 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-10-24 21:13:11,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:13:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-10-24 21:13:11,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-24 21:13:11,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:11,094 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:13:11,094 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:11,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:11,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1279135784, now seen corresponding path program 1 times [2018-10-24 21:13:11,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:11,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:11,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:11,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:11,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:13:11,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:13:11,461 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:13:11,462 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-10-24 21:13:11,464 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:13:11,534 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:13:11,534 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:13:13,487 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:13:13,736 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:13:13,737 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:13:13,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:13,747 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:13:16,061 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.29% of their original sizes. [2018-10-24 21:13:16,061 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:13:16,465 INFO L413 sIntCurrentIteration]: We have 175 unified AI predicates [2018-10-24 21:13:16,466 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:13:16,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:13:16,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:13:16,467 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:16,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:13:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:13:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:13:16,469 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 7 states. [2018-10-24 21:14:12,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:14:12,858 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-10-24 21:14:12,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:14:12,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2018-10-24 21:14:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:14:12,865 INFO L225 Difference]: With dead ends: 2260 [2018-10-24 21:14:12,866 INFO L226 Difference]: Without dead ends: 1229 [2018-10-24 21:14:12,869 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:14:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-24 21:14:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-10-24 21:14:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-10-24 21:14:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-10-24 21:14:12,907 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 176 [2018-10-24 21:14:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:14:12,908 INFO L481 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-10-24 21:14:12,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:14:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-10-24 21:14:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-24 21:14:12,911 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:14:12,911 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:14:12,912 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:14:12,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:12,912 INFO L82 PathProgramCache]: Analyzing trace with hash 239746622, now seen corresponding path program 1 times [2018-10-24 21:14:12,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:14:12,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:12,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:14:12,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:12,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:14:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:14:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 21:14:13,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:14:13,219 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:14:13,219 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-10-24 21:14:13,220 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:14:13,227 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:14:13,228 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:14:15,897 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:14:26,390 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:14:26,390 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:14:26,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:26,397 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:14:30,321 INFO L232 lantSequenceWeakener]: Weakened 94 states. On average, predicates are now at 74.11% of their original sizes. [2018-10-24 21:14:30,322 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:14:44,541 INFO L413 sIntCurrentIteration]: We have 219 unified AI predicates [2018-10-24 21:14:44,541 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:14:44,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:14:44,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-24 21:14:44,542 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:14:44,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 21:14:44,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 21:14:44,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-10-24 21:14:44,544 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 21:16:49,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 21:16:49,382 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:16:49,389 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:16:49,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:16:49 BoogieIcfgContainer [2018-10-24 21:16:49,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:16:49,390 INFO L168 Benchmark]: Toolchain (without parser) took 235414.83 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 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 207.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:49,391 INFO L168 Benchmark]: CDTParser took 0.20 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 21:16:49,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 959.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:49,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 306.82 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -822.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:49,394 INFO L168 Benchmark]: Boogie Preprocessor took 158.94 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:16:49,394 INFO L168 Benchmark]: RCFGBuilder took 4897.62 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 178.3 MB). Peak memory consumption was 178.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:49,395 INFO L168 Benchmark]: TraceAbstraction took 229086.43 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:49,400 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 959.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 306.82 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -822.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.94 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4897.62 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 178.3 MB). Peak memory consumption was 178.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229086.43 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 69). Cancelled while BasicCegarLoop was constructing difference of abstraction (1227states) and FLOYD_HOARE automaton (currently 18 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (1132 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 228.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 190.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 725 SDtfs, 2801 SDslu, 852 SDs, 0 SdLazy, 5349 SolverSat, 859 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 424 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1227occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9948835710257035 AbsIntWeakeningRatio, 0.14213197969543148 AbsIntAvgWeakeningVarsNumRemoved, 636.6954314720812 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 254 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 523 ConstructedInterpolants, 0 QuantifiedInterpolants, 403522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 140/253 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown