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/Problem12_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:38:41,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:38:41,197 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:38:41,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:38:41,210 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:38:41,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:38:41,215 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:38:41,218 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:38:41,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:38:41,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:38:41,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:38:41,224 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:38:41,227 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:38:41,228 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:38:41,229 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:38:41,230 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:38:41,230 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:38:41,241 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:38:41,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:38:41,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:38:41,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:38:41,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:38:41,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:38:41,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:38:41,258 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:38:41,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:38:41,259 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:38:41,260 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:38:41,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:38:41,262 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:38:41,262 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:38:41,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 01:38:41,263 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 01:38:41,263 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 01:38:41,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 01:38:41,264 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 01:38:41,265 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 [2018-10-25 01:38:41,281 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:38:41,281 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:38:41,282 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:38:41,282 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:38:41,282 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:38:41,282 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:38:41,283 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:38:41,283 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:38:41,283 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:38:41,283 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:38:41,283 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:38:41,284 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:38:41,284 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:38:41,284 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:38:41,285 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:38:41,285 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:38:41,285 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:38:41,285 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:38:41,286 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:38:41,286 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:38:41,286 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:38:41,286 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:38:41,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:38:41,287 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:38:41,287 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:38:41,287 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:38:41,287 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:38:41,287 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:38:41,288 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:38:41,288 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:38:41,288 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:38:41,288 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:38:41,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:38:41,289 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:38:41,289 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:38:41,289 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:38:41,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:38:41,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:38:41,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:38:41,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:38:41,384 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:38:41,384 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-10-25 01:38:41,445 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d44f9588/d6c6d1bc4be748608af94496f75bb8b7/FLAG7283ffbe8 [2018-10-25 01:38:42,223 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:38:42,224 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-10-25 01:38:42,260 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d44f9588/d6c6d1bc4be748608af94496f75bb8b7/FLAG7283ffbe8 [2018-10-25 01:38:42,276 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2d44f9588/d6c6d1bc4be748608af94496f75bb8b7 [2018-10-25 01:38:42,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:38:42,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:38:42,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:38:42,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:38:42,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:38:42,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:38:42" (1/1) ... [2018-10-25 01:38:42,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:42, skipping insertion in model container [2018-10-25 01:38:42,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:38:42" (1/1) ... [2018-10-25 01:38:42,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:38:42,476 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:38:44,092 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:38:44,098 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:38:44,702 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:38:44,742 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:38:44,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44 WrapperNode [2018-10-25 01:38:44,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:38:44,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:38:44,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:38:44,745 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:38:44,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:44,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:38:45,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:38:45,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:38:45,276 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:38:45,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (1/1) ... [2018-10-25 01:38:45,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:38:45,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:38:45,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:38:45,563 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:38:45,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (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 [2018-10-25 01:38:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:38:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:38:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:38:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:38:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:38:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:38:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:38:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:38:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:38:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:38:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:38:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:38:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:38:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:38:57,009 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:38:57,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:38:57 BoogieIcfgContainer [2018-10-25 01:38:57,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:38:57,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:38:57,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:38:57,015 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:38:57,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:38:42" (1/3) ... [2018-10-25 01:38:57,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef33c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:38:57, skipping insertion in model container [2018-10-25 01:38:57,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:38:44" (2/3) ... [2018-10-25 01:38:57,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef33c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:38:57, skipping insertion in model container [2018-10-25 01:38:57,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:38:57" (3/3) ... [2018-10-25 01:38:57,019 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label32_true-unreach-call.c [2018-10-25 01:38:57,029 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:38:57,041 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:38:57,059 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:38:57,106 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:38:57,107 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:38:57,107 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:38:57,107 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:38:57,107 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:38:57,107 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:38:57,107 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:38:57,108 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:38:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-25 01:38:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-25 01:38:57,166 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:38:57,167 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:38:57,170 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:38:57,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:38:57,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1790779988, now seen corresponding path program 1 times [2018-10-25 01:38:57,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:38:57,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:38:57,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:38:57,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:38:57,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:38:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:38:57,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:38:57,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:38:57,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:38:57,777 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:38:57,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:38:57,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:38:57,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:38:57,810 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-10-25 01:39:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:39:10,854 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-10-25 01:39:10,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:39:10,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-10-25 01:39:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:39:10,909 INFO L225 Difference]: With dead ends: 3234 [2018-10-25 01:39:10,909 INFO L226 Difference]: Without dead ends: 2388 [2018-10-25 01:39:10,920 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 [2018-10-25 01:39:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-10-25 01:39:11,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-10-25 01:39:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-10-25 01:39:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-10-25 01:39:11,105 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 50 [2018-10-25 01:39:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:39:11,106 INFO L481 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-10-25 01:39:11,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:39:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-10-25 01:39:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-25 01:39:11,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:39:11,116 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:39:11,117 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:39:11,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:11,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1628117594, now seen corresponding path program 1 times [2018-10-25 01:39:11,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:39:11,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:11,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:39:11,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:11,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:39:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:39:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:39:11,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:39:11,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:39:11,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:39:11,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:39:11,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:39:11,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:39:11,539 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-10-25 01:39:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:39:25,095 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-10-25 01:39:25,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:39:25,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-10-25 01:39:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:39:25,155 INFO L225 Difference]: With dead ends: 9453 [2018-10-25 01:39:25,155 INFO L226 Difference]: Without dead ends: 7071 [2018-10-25 01:39:25,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:39:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-10-25 01:39:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-10-25 01:39:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-10-25 01:39:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-10-25 01:39:25,389 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 150 [2018-10-25 01:39:25,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:39:25,389 INFO L481 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-10-25 01:39:25,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:39:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-10-25 01:39:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-25 01:39:25,405 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:39:25,405 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:39:25,406 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:39:25,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:25,406 INFO L82 PathProgramCache]: Analyzing trace with hash 395335138, now seen corresponding path program 1 times [2018-10-25 01:39:25,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:39:25,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:25,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:39:25,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:25,409 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:39:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:39:25,791 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:39:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-25 01:39:25,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:39:25,928 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:39:25,929 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-10-25 01:39:25,932 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2167], [2169], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-25 01:39:25,980 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:39:25,981 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:39:27,387 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:39:27,390 INFO L272 AbstractInterpreter]: Visited 157 different actions 308 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-25 01:39:27,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:27,426 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:39:28,648 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 79.01% of their original sizes. [2018-10-25 01:39:28,650 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:39:29,211 INFO L413 sIntCurrentIteration]: We have 199 unified AI predicates [2018-10-25 01:39:29,211 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:39:29,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:39:29,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [4] total 16 [2018-10-25 01:39:29,213 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:39:29,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 01:39:29,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 01:39:29,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-10-25 01:39:29,215 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 14 states. [2018-10-25 01:39:33,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 01:39:33,726 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: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.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) 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) [2018-10-25 01:39:33,732 INFO L168 Benchmark]: Toolchain (without parser) took 51444.28 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -356.8 MB). Peak memory consumption was 910.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,734 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:39:33,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2452.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 531.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,736 INFO L168 Benchmark]: Boogie Preprocessor took 287.13 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,737 INFO L168 Benchmark]: RCFGBuilder took 11447.40 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -178.5 MB). Peak memory consumption was 660.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,738 INFO L168 Benchmark]: TraceAbstraction took 36720.19 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 293.6 MB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 622.1 MB). Peak memory consumption was 915.8 MB. Max. memory is 7.1 GB. [2018-10-25 01:39:33,744 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2452.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 531.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 287.13 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11447.40 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -178.5 MB). Peak memory consumption was 660.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36720.19 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 293.6 MB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 622.1 MB). Peak memory consumption was 915.8 MB. 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...