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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:50:56,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:50:56,221 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:50:56,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:50:56,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:50:56,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:50:56,235 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:50:56,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:50:56,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:50:56,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:50:56,241 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:50:56,243 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:50:56,244 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:50:56,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:50:56,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:50:56,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:50:56,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:50:56,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:50:56,265 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:50:56,266 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:50:56,267 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:50:56,269 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:50:56,271 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:50:56,271 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:50:56,271 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:50:56,272 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:50:56,273 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:50:56,274 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:50:56,274 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:50:56,275 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:50:56,276 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:50:56,276 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 23:50:56,277 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 23:50:56,277 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 23:50:56,278 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 23:50:56,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 23:50:56,279 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:50:56,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:50:56,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:50:56,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:50:56,295 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:50:56,295 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:50:56,295 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:50:56,295 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:50:56,296 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:50:56,296 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:50:56,296 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:50:56,296 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:50:56,296 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:50:56,297 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:50:56,297 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:50:56,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:50:56,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:50:56,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:50:56,298 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:50:56,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:50:56,298 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:50:56,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:50:56,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:50:56,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:50:56,299 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:50:56,299 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:50:56,299 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:50:56,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:50:56,300 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:50:56,300 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:50:56,300 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:50:56,301 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:50:56,301 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:50:56,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:50:56,301 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:50:56,302 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:50:56,302 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:50:56,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:50:56,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:50:56,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:50:56,380 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:50:56,381 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:50:56,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 23:50:56,452 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6c4f2f60/3583e33c07c545918aef8d292ec7bdd1/FLAG1800cb581 [2018-10-24 23:50:57,177 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:50:57,178 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 23:50:57,208 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6c4f2f60/3583e33c07c545918aef8d292ec7bdd1/FLAG1800cb581 [2018-10-24 23:50:57,232 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6c4f2f60/3583e33c07c545918aef8d292ec7bdd1 [2018-10-24 23:50:57,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:50:57,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:50:57,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:50:57,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:50:57,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:50:57,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:57" (1/1) ... [2018-10-24 23:50:57,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100fc25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:57, skipping insertion in model container [2018-10-24 23:50:57,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:57" (1/1) ... [2018-10-24 23:50:57,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:50:57,403 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:50:58,453 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:50:58,459 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:50:58,925 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:50:58,959 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:50:58,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58 WrapperNode [2018-10-24 23:50:58,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:50:58,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:50:58,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:50:58,961 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:50:58,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:50:59,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:50:59,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:50:59,377 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:50:59,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (1/1) ... [2018-10-24 23:50:59,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:50:59,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:50:59,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:50:59,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:50:59,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (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 23:50:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:50:59,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:50:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:50:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:50:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:50:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:50:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:50:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:50:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:50:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:50:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:50:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:51:08,416 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:51:08,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:51:08 BoogieIcfgContainer [2018-10-24 23:51:08,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:51:08,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:51:08,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:51:08,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:51:08,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:50:57" (1/3) ... [2018-10-24 23:51:08,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019bbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:51:08, skipping insertion in model container [2018-10-24 23:51:08,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:58" (2/3) ... [2018-10-24 23:51:08,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019bbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:51:08, skipping insertion in model container [2018-10-24 23:51:08,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:51:08" (3/3) ... [2018-10-24 23:51:08,426 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label09_false-unreach-call.c [2018-10-24 23:51:08,436 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:51:08,446 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:51:08,467 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:51:08,516 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:51:08,516 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:51:08,516 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:51:08,516 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:51:08,516 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:51:08,517 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:51:08,517 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:51:08,517 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:51:08,555 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 23:51:08,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 23:51:08,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:08,563 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:51:08,565 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:08,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1936021327, now seen corresponding path program 1 times [2018-10-24 23:51:08,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:08,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:08,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:08,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:08,626 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:08,938 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:51:09,042 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 23:51:09,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:09,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:51:09,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:09,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:51:09,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:51:09,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:51:09,072 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 23:51:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:51:15,814 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 23:51:15,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:51:15,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-10-24 23:51:15,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:51:15,849 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 23:51:15,849 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 23:51:15,860 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 23:51:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 23:51:16,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 23:51:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 23:51:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 23:51:16,031 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 17 [2018-10-24 23:51:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:51:16,032 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 23:51:16,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:51:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 23:51:16,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-24 23:51:16,038 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:16,038 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:51:16,038 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:16,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:16,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1492732416, now seen corresponding path program 1 times [2018-10-24 23:51:16,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:16,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:16,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:16,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:16,041 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:51:16,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:16,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:51:16,334 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:16,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:51:16,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:51:16,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:51:16,337 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 23:51:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:51:24,327 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 23:51:24,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:51:24,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-10-24 23:51:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:51:24,358 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 23:51:24,358 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 23:51:24,364 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 23:51:24,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 23:51:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 23:51:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 23:51:24,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 23:51:24,474 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 87 [2018-10-24 23:51:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:51:24,474 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 23:51:24,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:51:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 23:51:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-24 23:51:24,478 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:24,479 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:51:24,479 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:24,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:24,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1467766747, now seen corresponding path program 1 times [2018-10-24 23:51:24,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:24,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:24,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:24,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:24,481 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:51:24,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:24,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:51:24,658 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:24,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:51:24,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:51:24,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:51:24,659 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 23:51:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:51:30,286 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 23:51:30,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:51:30,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-24 23:51:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:51:30,317 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 23:51:30,317 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 23:51:30,326 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:51:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 23:51:30,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 23:51:30,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 23:51:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 23:51:30,456 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 88 [2018-10-24 23:51:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:51:30,456 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 23:51:30,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:51:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 23:51:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 23:51:30,459 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:30,459 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:51:30,459 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:30,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:30,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1043283703, now seen corresponding path program 1 times [2018-10-24 23:51:30,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:30,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:30,462 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:51:30,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:30,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:51:30,629 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:30,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:51:30,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:51:30,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:51:30,631 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 23:51:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:51:39,985 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-24 23:51:39,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:51:39,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2018-10-24 23:51:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:51:40,041 INFO L225 Difference]: With dead ends: 14819 [2018-10-24 23:51:40,041 INFO L226 Difference]: Without dead ends: 10434 [2018-10-24 23:51:40,063 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:51:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-24 23:51:40,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-24 23:51:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-24 23:51:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-24 23:51:40,320 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 90 [2018-10-24 23:51:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:51:40,321 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-24 23:51:40,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:51:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-24 23:51:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 23:51:40,330 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:40,330 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 23:51:40,330 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:40,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1013837730, now seen corresponding path program 1 times [2018-10-24 23:51:40,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:40,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:40,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:40,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:40,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 23:51:40,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:40,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:51:40,554 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:40,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:51:40,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:51:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:51:40,555 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 3 states. [2018-10-24 23:51:47,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:51:47,389 INFO L93 Difference]: Finished difference Result 28424 states and 38618 transitions. [2018-10-24 23:51:47,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:51:47,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-24 23:51:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:51:47,464 INFO L225 Difference]: With dead ends: 28424 [2018-10-24 23:51:47,464 INFO L226 Difference]: Without dead ends: 18146 [2018-10-24 23:51:47,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:51:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18146 states. [2018-10-24 23:51:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18146 to 18140. [2018-10-24 23:51:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18140 states. [2018-10-24 23:51:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18140 states to 18140 states and 22671 transitions. [2018-10-24 23:51:48,046 INFO L78 Accepts]: Start accepts. Automaton has 18140 states and 22671 transitions. Word has length 194 [2018-10-24 23:51:48,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:51:48,047 INFO L481 AbstractCegarLoop]: Abstraction has 18140 states and 22671 transitions. [2018-10-24 23:51:48,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:51:48,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18140 states and 22671 transitions. [2018-10-24 23:51:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-24 23:51:48,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:48,059 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:51:48,059 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:48,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:48,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1598601286, now seen corresponding path program 1 times [2018-10-24 23:51:48,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:48,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:48,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:48,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:48,061 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:48,389 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:51:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 15 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:51:48,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:51:48,873 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:51:48,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-10-24 23:51:48,877 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1659], [1661], [1664], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 23:51:48,932 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:51:48,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:51:49,531 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:51:49,532 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:51:49,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:49,572 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:51:50,189 INFO L232 lantSequenceWeakener]: Weakened 269 states. On average, predicates are now at 77.29% of their original sizes. [2018-10-24 23:51:50,190 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:51:50,312 INFO L413 sIntCurrentIteration]: We have 277 unified AI predicates [2018-10-24 23:51:50,313 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:51:50,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:51:50,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2018-10-24 23:51:50,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:50,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:51:50,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:51:50,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:51:50,315 INFO L87 Difference]: Start difference. First operand 18140 states and 22671 transitions. Second operand 6 states. [2018-10-24 23:52:38,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:52:38,152 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 23:52:38,160 INFO L168 Benchmark]: Toolchain (without parser) took 100913.30 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -179.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,162 INFO L168 Benchmark]: CDTParser took 0.24 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 23:52:38,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1709.86 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 415.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -972.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,164 INFO L168 Benchmark]: Boogie Preprocessor took 254.86 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,165 INFO L168 Benchmark]: RCFGBuilder took 8785.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 509.0 MB). Peak memory consumption was 509.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,166 INFO L168 Benchmark]: TraceAbstraction took 89740.80 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 123.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 23:52:38,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1709.86 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 415.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -972.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 254.86 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8785.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 509.0 MB). Peak memory consumption was 509.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 89740.80 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 123.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...