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/Problem15_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:37:17,171 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:37:17,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:37:17,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:37:17,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:37:17,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:37:17,190 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:37:17,193 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:37:17,194 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:37:17,196 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:37:17,198 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:37:17,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:37:17,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:37:17,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:37:17,209 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:37:17,209 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:37:17,213 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:37:17,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:37:17,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:37:17,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:37:17,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:37:17,225 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:37:17,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:37:17,228 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:37:17,231 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:37:17,232 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:37:17,232 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:37:17,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:37:17,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:37:17,236 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:37:17,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:37:17,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:37:17,238 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:37:17,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:37:17,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:37:17,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:37:17,240 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 18:37:17,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:37:17,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:37:17,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:37:17,265 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:37:17,265 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:37:17,265 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:37:17,265 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:37:17,266 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:37:17,266 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:37:17,266 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:37:17,266 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:37:17,266 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:37:17,267 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:37:17,267 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:37:17,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:37:17,268 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:37:17,268 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:37:17,268 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:37:17,268 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:37:17,268 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:37:17,269 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:37:17,269 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:37:17,269 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:37:17,269 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:37:17,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:37:17,270 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:37:17,270 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:37:17,270 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:37:17,270 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:37:17,270 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:37:17,270 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:37:17,271 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:37:17,271 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:37:17,271 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:37:17,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:37:17,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:37:17,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:37:17,340 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:37:17,341 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:37:17,341 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-10-24 18:37:17,416 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e1e0a70f3/e6d11b1d02c643d992118d4b589ae30e/FLAG475d4b7d7 [2018-10-24 18:37:18,028 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:37:18,029 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-10-24 18:37:18,052 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e1e0a70f3/e6d11b1d02c643d992118d4b589ae30e/FLAG475d4b7d7 [2018-10-24 18:37:18,074 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e1e0a70f3/e6d11b1d02c643d992118d4b589ae30e [2018-10-24 18:37:18,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:37:18,089 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:37:18,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:18,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:37:18,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:37:18,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:18" (1/1) ... [2018-10-24 18:37:18,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccbb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:18, skipping insertion in model container [2018-10-24 18:37:18,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:37:18" (1/1) ... [2018-10-24 18:37:18,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:37:18,224 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:37:19,074 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:19,079 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:37:19,360 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:37:19,382 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:37:19,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19 WrapperNode [2018-10-24 18:37:19,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:37:19,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:19,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:37:19,385 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:37:19,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:37:19,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:37:19,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:37:19,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:37:19,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:19,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (1/1) ... [2018-10-24 18:37:20,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:37:20,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:37:20,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:37:20,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:37:20,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (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 18:37:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:37:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:37:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:37:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:37:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:37:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:37:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:37:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:37:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:37:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:37:26,494 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:37:26,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:26 BoogieIcfgContainer [2018-10-24 18:37:26,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:37:26,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:37:26,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:37:26,500 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:37:26,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:37:18" (1/3) ... [2018-10-24 18:37:26,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e75f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:26, skipping insertion in model container [2018-10-24 18:37:26,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:37:19" (2/3) ... [2018-10-24 18:37:26,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e75f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:26, skipping insertion in model container [2018-10-24 18:37:26,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:26" (3/3) ... [2018-10-24 18:37:26,504 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label25_false-unreach-call.c [2018-10-24 18:37:26,514 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:37:26,523 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:37:26,541 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:37:26,582 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:37:26,582 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:37:26,583 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:37:26,583 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:37:26,583 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:37:26,583 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:37:26,583 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:37:26,584 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:37:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:37:26,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 18:37:26,631 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:26,631 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:26,634 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:26,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:26,639 INFO L82 PathProgramCache]: Analyzing trace with hash 480203289, now seen corresponding path program 1 times [2018-10-24 18:37:26,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:26,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:26,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:26,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:26,697 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:27,081 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:37:27,097 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 18:37:27,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:27,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:27,100 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:27,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:27,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:27,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:27,128 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:37:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:37,029 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-10-24 18:37:37,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:37,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-10-24 18:37:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:37,075 INFO L225 Difference]: With dead ends: 1550 [2018-10-24 18:37:37,076 INFO L226 Difference]: Without dead ends: 1106 [2018-10-24 18:37:37,090 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 18:37:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-10-24 18:37:37,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-10-24 18:37:37,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-10-24 18:37:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-10-24 18:37:37,202 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 31 [2018-10-24 18:37:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:37,203 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-10-24 18:37:37,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-10-24 18:37:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 18:37:37,209 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:37,210 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:37,210 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:37,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:37,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1889968228, now seen corresponding path program 1 times [2018-10-24 18:37:37,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:37,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:37,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:37,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:37,212 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:37,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:37,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:37:37,462 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:37,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:37:37,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:37:37,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:37:37,465 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-10-24 18:37:46,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:46,675 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-10-24 18:37:46,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:37:46,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-10-24 18:37:46,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:46,688 INFO L225 Difference]: With dead ends: 2245 [2018-10-24 18:37:46,688 INFO L226 Difference]: Without dead ends: 1489 [2018-10-24 18:37:46,693 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:37:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-10-24 18:37:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-10-24 18:37:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-10-24 18:37:46,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-10-24 18:37:46,753 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 104 [2018-10-24 18:37:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:46,753 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-10-24 18:37:46,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:37:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-10-24 18:37:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 18:37:46,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:46,758 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:46,758 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:46,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:46,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1891777420, now seen corresponding path program 1 times [2018-10-24 18:37:46,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:46,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:46,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:46,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:46,761 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:46,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:46,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:46,960 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:46,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:46,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:46,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:46,962 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-10-24 18:37:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:53,823 INFO L93 Difference]: Finished difference Result 5409 states and 8320 transitions. [2018-10-24 18:37:53,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:53,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-10-24 18:37:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:53,849 INFO L225 Difference]: With dead ends: 5409 [2018-10-24 18:37:53,850 INFO L226 Difference]: Without dead ends: 3958 [2018-10-24 18:37:53,863 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 18:37:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2018-10-24 18:37:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3953. [2018-10-24 18:37:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3953 states. [2018-10-24 18:37:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5489 transitions. [2018-10-24 18:37:53,986 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5489 transitions. Word has length 112 [2018-10-24 18:37:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:53,987 INFO L481 AbstractCegarLoop]: Abstraction has 3953 states and 5489 transitions. [2018-10-24 18:37:53,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5489 transitions. [2018-10-24 18:37:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 18:37:53,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:53,992 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:53,992 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:53,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash -105933602, now seen corresponding path program 1 times [2018-10-24 18:37:53,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:53,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:53,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:53,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:53,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:54,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:54,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:37:54,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:54,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:37:54,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:37:54,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:37:54,257 INFO L87 Difference]: Start difference. First operand 3953 states and 5489 transitions. Second operand 6 states. [2018-10-24 18:38:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:01,033 INFO L93 Difference]: Finished difference Result 9154 states and 12480 transitions. [2018-10-24 18:38:01,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:38:01,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-24 18:38:01,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:01,061 INFO L225 Difference]: With dead ends: 9154 [2018-10-24 18:38:01,062 INFO L226 Difference]: Without dead ends: 5207 [2018-10-24 18:38:01,086 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 18:38:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5207 states. [2018-10-24 18:38:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5153. [2018-10-24 18:38:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2018-10-24 18:38:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 6640 transitions. [2018-10-24 18:38:01,214 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 6640 transitions. Word has length 131 [2018-10-24 18:38:01,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:01,215 INFO L481 AbstractCegarLoop]: Abstraction has 5153 states and 6640 transitions. [2018-10-24 18:38:01,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:38:01,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 6640 transitions. [2018-10-24 18:38:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-24 18:38:01,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:01,219 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:38:01,220 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:01,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1626579703, now seen corresponding path program 1 times [2018-10-24 18:38:01,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:01,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:01,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:01,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:01,221 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 18:38:01,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:38:01,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:38:01,503 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:01,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:38:01,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:38:01,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:38:01,504 INFO L87 Difference]: Start difference. First operand 5153 states and 6640 transitions. Second operand 4 states. [2018-10-24 18:38:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:06,636 INFO L93 Difference]: Finished difference Result 16904 states and 22307 transitions. [2018-10-24 18:38:06,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:38:06,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-10-24 18:38:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:06,693 INFO L225 Difference]: With dead ends: 16904 [2018-10-24 18:38:06,693 INFO L226 Difference]: Without dead ends: 11757 [2018-10-24 18:38:06,733 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 18:38:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2018-10-24 18:38:07,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11397. [2018-10-24 18:38:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11397 states. [2018-10-24 18:38:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11397 states to 11397 states and 14032 transitions. [2018-10-24 18:38:07,032 INFO L78 Accepts]: Start accepts. Automaton has 11397 states and 14032 transitions. Word has length 186 [2018-10-24 18:38:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:07,033 INFO L481 AbstractCegarLoop]: Abstraction has 11397 states and 14032 transitions. [2018-10-24 18:38:07,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:38:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 11397 states and 14032 transitions. [2018-10-24 18:38:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 18:38:07,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:07,040 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:38:07,040 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:07,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:07,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1918161605, now seen corresponding path program 1 times [2018-10-24 18:38:07,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:07,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:07,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:07,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:07,042 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:07,273 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-10-24 18:38:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 18:38:07,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:38:07,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:38:07,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:07,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:38:07,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:38:07,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:38:07,300 INFO L87 Difference]: Start difference. First operand 11397 states and 14032 transitions. Second operand 3 states. [2018-10-24 18:38:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:38:12,142 INFO L93 Difference]: Finished difference Result 27800 states and 35316 transitions. [2018-10-24 18:38:12,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:38:12,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-10-24 18:38:12,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:38:12,227 INFO L225 Difference]: With dead ends: 27800 [2018-10-24 18:38:12,228 INFO L226 Difference]: Without dead ends: 16409 [2018-10-24 18:38:12,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:38:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16409 states. [2018-10-24 18:38:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16409 to 16395. [2018-10-24 18:38:12,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16395 states. [2018-10-24 18:38:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16395 states to 16395 states and 20523 transitions. [2018-10-24 18:38:12,844 INFO L78 Accepts]: Start accepts. Automaton has 16395 states and 20523 transitions. Word has length 199 [2018-10-24 18:38:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:38:12,845 INFO L481 AbstractCegarLoop]: Abstraction has 16395 states and 20523 transitions. [2018-10-24 18:38:12,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:38:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 16395 states and 20523 transitions. [2018-10-24 18:38:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 18:38:12,855 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:38:12,855 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:38:12,855 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:38:12,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:12,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1276060231, now seen corresponding path program 1 times [2018-10-24 18:38:12,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:38:12,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:12,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:38:12,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:38:12,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:38:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:38:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 18:38:13,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:38:13,596 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:38:13,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-24 18:38:13,599 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:38:13,678 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:38:13,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:38:16,158 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:38:16,853 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:38:16,854 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:38:16,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:38:16,900 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:38:19,277 INFO L232 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 77.66% of their original sizes. [2018-10-24 18:38:19,278 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:38:19,754 INFO L413 sIntCurrentIteration]: We have 211 unified AI predicates [2018-10-24 18:38:19,754 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:38:19,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:38:19,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-10-24 18:38:19,758 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:19,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 18:38:19,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 18:38:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:38:19,759 INFO L87 Difference]: Start difference. First operand 16395 states and 20523 transitions. Second operand 8 states. [2018-10-24 18:39:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:39:14,795 INFO L93 Difference]: Finished difference Result 33094 states and 41402 transitions. [2018-10-24 18:39:14,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:39:14,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2018-10-24 18:39:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:39:14,859 INFO L225 Difference]: With dead ends: 33094 [2018-10-24 18:39:14,859 INFO L226 Difference]: Without dead ends: 16705 [2018-10-24 18:39:14,909 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:39:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16705 states. [2018-10-24 18:39:15,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16705 to 16703. [2018-10-24 18:39:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16703 states. [2018-10-24 18:39:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16703 states to 16703 states and 20840 transitions. [2018-10-24 18:39:15,264 INFO L78 Accepts]: Start accepts. Automaton has 16703 states and 20840 transitions. Word has length 212 [2018-10-24 18:39:15,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:39:15,265 INFO L481 AbstractCegarLoop]: Abstraction has 16703 states and 20840 transitions. [2018-10-24 18:39:15,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 18:39:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 16703 states and 20840 transitions. [2018-10-24 18:39:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-24 18:39:15,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:39:15,281 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:39:15,282 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:39:15,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:39:15,282 INFO L82 PathProgramCache]: Analyzing trace with hash 725845603, now seen corresponding path program 1 times [2018-10-24 18:39:15,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:39:15,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:39:15,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:39:15,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:39:15,284 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:39:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:39:16,344 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 18:39:16,803 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-10-24 18:39:17,139 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 18:39:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 156 proven. 169 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:39:17,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:39:17,500 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:39:17,501 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-10-24 18:39:17,501 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:39:17,507 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:39:17,507 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:39:19,569 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:39:26,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:39:26,031 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:39:26,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:39:26,036 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:39:28,827 INFO L232 lantSequenceWeakener]: Weakened 86 states. On average, predicates are now at 78.49% of their original sizes. [2018-10-24 18:39:28,827 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 18:41:10,261 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:41:10,267 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:41:10,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:41:10 BoogieIcfgContainer [2018-10-24 18:41:10,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:41:10,268 INFO L168 Benchmark]: Toolchain (without parser) took 232180.70 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,270 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:41:10,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1293.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 412.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,272 INFO L168 Benchmark]: Boogie Preprocessor took 227.38 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,273 INFO L168 Benchmark]: RCFGBuilder took 6470.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 308.1 MB). Peak memory consumption was 308.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,274 INFO L168 Benchmark]: TraceAbstraction took 223771.34 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -750.0 MB). Peak memory consumption was 872.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:41:10,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1293.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 412.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 227.38 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6470.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 308.1 MB). Peak memory consumption was 308.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223771.34 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -750.0 MB). Peak memory consumption was 872.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was analyzing trace of length 309 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 223.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 98.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2132 SDtfs, 6421 SDslu, 1329 SDs, 0 SdLazy, 11872 SolverSat, 2698 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 251 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16703occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9952821610430305 AbsIntWeakeningRatio, 0.11196911196911197 AbsIntAvgWeakeningVarsNumRemoved, 588.6563706563707 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 811 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 975 NumberOfCodeBlocks, 975 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 372237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 450/452 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown