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_label03_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:30:43,071 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:30:43,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:30:43,089 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:30:43,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:30:43,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:30:43,092 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:30:43,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:30:43,096 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:30:43,097 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:30:43,097 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:30:43,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:30:43,099 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:30:43,100 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:30:43,101 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:30:43,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:30:43,102 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:30:43,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:30:43,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:30:43,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:30:43,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:30:43,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:30:43,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:30:43,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:30:43,114 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:30:43,115 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:30:43,116 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:30:43,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:30:43,117 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:30:43,118 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:30:43,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:30:43,119 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 23:30:43,120 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 23:30:43,120 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 23:30:43,121 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 23:30:43,122 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 23:30:43,122 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 23:30:43,144 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:30:43,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:30:43,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:30:43,146 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:30:43,146 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:30:43,146 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:30:43,146 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:30:43,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:30:43,147 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:30:43,147 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:30:43,147 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:30:43,147 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:30:43,148 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:30:43,148 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:30:43,149 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:30:43,149 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:30:43,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:30:43,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:30:43,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:30:43,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:30:43,150 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:30:43,150 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:30:43,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:30:43,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:30:43,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:30:43,151 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:30:43,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:30:43,151 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:30:43,151 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:30:43,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:30:43,152 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:30:43,152 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:30:43,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:30:43,152 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:30:43,152 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:30:43,153 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:30:43,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:30:43,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:30:43,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:30:43,241 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:30:43,241 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:30:43,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label03_false-unreach-call.c [2018-10-24 23:30:43,305 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fdab96fbb/ad996c8ec8e145b38701392f65058339/FLAG647849a95 [2018-10-24 23:30:44,094 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:30:44,095 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label03_false-unreach-call.c [2018-10-24 23:30:44,130 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fdab96fbb/ad996c8ec8e145b38701392f65058339/FLAG647849a95 [2018-10-24 23:30:44,149 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fdab96fbb/ad996c8ec8e145b38701392f65058339 [2018-10-24 23:30:44,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:30:44,166 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:30:44,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:30:44,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:30:44,175 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:30:44,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:30:44" (1/1) ... [2018-10-24 23:30:44,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d53142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:44, skipping insertion in model container [2018-10-24 23:30:44,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:30:44" (1/1) ... [2018-10-24 23:30:44,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:30:44,332 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:30:45,639 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:30:45,646 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:30:46,236 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:30:46,273 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:30:46,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46 WrapperNode [2018-10-24 23:30:46,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:30:46,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:30:46,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:30:46,276 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:30:46,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:30:46,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:30:46,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:30:46,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:30:46,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:46,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:47,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (1/1) ... [2018-10-24 23:30:47,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:30:47,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:30:47,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:30:47,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:30:47,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (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 23:30:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:30:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:30:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 23:30:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 23:30:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:30:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:30:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:30:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:30:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:30:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:30:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:30:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:30:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:30:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:30:58,162 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:30:58,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:30:58 BoogieIcfgContainer [2018-10-24 23:30:58,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:30:58,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:30:58,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:30:58,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:30:58,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:30:44" (1/3) ... [2018-10-24 23:30:58,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6943ecc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:30:58, skipping insertion in model container [2018-10-24 23:30:58,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:46" (2/3) ... [2018-10-24 23:30:58,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6943ecc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:30:58, skipping insertion in model container [2018-10-24 23:30:58,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:30:58" (3/3) ... [2018-10-24 23:30:58,172 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label03_false-unreach-call.c [2018-10-24 23:30:58,182 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:30:58,192 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:30:58,211 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:30:58,258 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:30:58,258 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:30:58,258 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:30:58,258 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:30:58,259 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:30:58,259 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:30:58,259 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:30:58,259 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:30:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 23:30:58,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-24 23:30:58,321 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:30:58,322 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] [2018-10-24 23:30:58,325 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:30:58,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:30:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2126860428, now seen corresponding path program 1 times [2018-10-24 23:30:58,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:30:58,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:30:58,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:30:58,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:30:58,395 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:30:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:30:58,770 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:30:58,869 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 23:30:58,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:30:58,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:30:58,874 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:30:58,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:30:58,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:30:58,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:30:58,899 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 23:31:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:31:09,759 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 23:31:09,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:31:09,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-10-24 23:31:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:31:09,803 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 23:31:09,804 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 23:31:09,814 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 23:31:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 23:31:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 23:31:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 23:31:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2969 transitions. [2018-10-24 23:31:09,976 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2969 transitions. Word has length 26 [2018-10-24 23:31:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:31:09,976 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2969 transitions. [2018-10-24 23:31:09,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:31:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2969 transitions. [2018-10-24 23:31:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 23:31:09,982 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:31:09,983 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:31:09,983 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:31:09,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:31:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2008600922, now seen corresponding path program 1 times [2018-10-24 23:31:09,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:31:09,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:09,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:31:09,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:09,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:31:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:31:10,382 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:31:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:31:10,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:31:10,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:31:10,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:31:10,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:31:10,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:31:10,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:31:10,603 INFO L87 Difference]: Start difference. First operand 1604 states and 2969 transitions. Second operand 5 states. [2018-10-24 23:31:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:31:21,454 INFO L93 Difference]: Finished difference Result 4043 states and 7444 transitions. [2018-10-24 23:31:21,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:31:21,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2018-10-24 23:31:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:31:21,474 INFO L225 Difference]: With dead ends: 4043 [2018-10-24 23:31:21,475 INFO L226 Difference]: Without dead ends: 2445 [2018-10-24 23:31:21,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:31:21,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2018-10-24 23:31:21,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2407. [2018-10-24 23:31:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2018-10-24 23:31:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4135 transitions. [2018-10-24 23:31:21,565 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4135 transitions. Word has length 100 [2018-10-24 23:31:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:31:21,566 INFO L481 AbstractCegarLoop]: Abstraction has 2407 states and 4135 transitions. [2018-10-24 23:31:21,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:31:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4135 transitions. [2018-10-24 23:31:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 23:31:21,573 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:31:21,573 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:31:21,574 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:31:21,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:31:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1895786230, now seen corresponding path program 1 times [2018-10-24 23:31:21,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:31:21,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:21,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:31:21,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:21,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:31:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:31:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:31:21,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:31:21,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:31:21,830 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:31:21,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:31:21,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:31:21,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:31:21,831 INFO L87 Difference]: Start difference. First operand 2407 states and 4135 transitions. Second operand 4 states. [2018-10-24 23:31:33,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:31:33,377 INFO L93 Difference]: Finished difference Result 9468 states and 16717 transitions. [2018-10-24 23:31:33,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:31:33,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2018-10-24 23:31:33,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:31:33,420 INFO L225 Difference]: With dead ends: 9468 [2018-10-24 23:31:33,420 INFO L226 Difference]: Without dead ends: 7067 [2018-10-24 23:31:33,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:31:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2018-10-24 23:31:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 7067. [2018-10-24 23:31:33,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7067 states. [2018-10-24 23:31:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 11725 transitions. [2018-10-24 23:31:33,632 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 11725 transitions. Word has length 102 [2018-10-24 23:31:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:31:33,633 INFO L481 AbstractCegarLoop]: Abstraction has 7067 states and 11725 transitions. [2018-10-24 23:31:33,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:31:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 11725 transitions. [2018-10-24 23:31:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 23:31:33,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:31:33,639 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:31:33,640 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:31:33,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:31:33,640 INFO L82 PathProgramCache]: Analyzing trace with hash 319455283, now seen corresponding path program 1 times [2018-10-24 23:31:33,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:31:33,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:33,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:31:33,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:33,642 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:31:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:31:33,859 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:31:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:31:34,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:31:34,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:31:34,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:31:34,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:31:34,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:31:34,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:31:34,123 INFO L87 Difference]: Start difference. First operand 7067 states and 11725 transitions. Second operand 6 states. [2018-10-24 23:31:48,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:31:48,258 INFO L93 Difference]: Finished difference Result 25896 states and 44610 transitions. [2018-10-24 23:31:48,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:31:48,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-10-24 23:31:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:31:48,372 INFO L225 Difference]: With dead ends: 25896 [2018-10-24 23:31:48,373 INFO L226 Difference]: Without dead ends: 18835 [2018-10-24 23:31:48,440 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:31:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18835 states. [2018-10-24 23:31:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18835 to 18744. [2018-10-24 23:31:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18744 states. [2018-10-24 23:31:49,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18744 states to 18744 states and 28768 transitions. [2018-10-24 23:31:49,179 INFO L78 Accepts]: Start accepts. Automaton has 18744 states and 28768 transitions. Word has length 129 [2018-10-24 23:31:49,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:31:49,179 INFO L481 AbstractCegarLoop]: Abstraction has 18744 states and 28768 transitions. [2018-10-24 23:31:49,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:31:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 18744 states and 28768 transitions. [2018-10-24 23:31:49,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-24 23:31:49,203 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:31:49,204 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:49,204 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:31:49,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:31:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash 466600808, now seen corresponding path program 1 times [2018-10-24 23:31:49,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:31:49,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:49,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:31:49,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:31:49,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:31:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:31:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 41 proven. 67 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 23:31:49,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:31:49,797 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:31:49,798 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-10-24 23:31:49,800 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1975], [1977], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [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], [2384], [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], [2672], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 23:31:49,855 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:31:49,855 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:31:50,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:31:50,890 INFO L272 AbstractInterpreter]: Visited 156 different actions 305 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:31:50,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:31:50,935 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:31:52,020 INFO L232 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 75.36% of their original sizes. [2018-10-24 23:31:52,020 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:31:53,062 INFO L413 sIntCurrentIteration]: We have 249 unified AI predicates [2018-10-24 23:31:53,063 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:31:53,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:31:53,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-10-24 23:31:53,065 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:31:53,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 23:31:53,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 23:31:53,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-10-24 23:31:53,066 INFO L87 Difference]: Start difference. First operand 18744 states and 28768 transitions. Second operand 15 states. [2018-10-24 23:31:58,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 23:31:58,895 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:93) 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: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) [2018-10-24 23:31:58,910 INFO L168 Benchmark]: Toolchain (without parser) took 74746.14 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:31:58,913 INFO L168 Benchmark]: CDTParser took 0.18 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 23:31:58,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2107.96 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. [2018-10-24 23:31:58,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 508.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:31:58,915 INFO L168 Benchmark]: Boogie Preprocessor took 268.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:31:58,918 INFO L168 Benchmark]: RCFGBuilder took 11110.09 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 193.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -208.1 MB). Peak memory consumption was 680.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:31:58,919 INFO L168 Benchmark]: TraceAbstraction took 60742.39 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 528.0 MB). Free memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: -433.5 MB). Peak memory consumption was 94.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:31:58,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 2107.96 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 508.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 268.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11110.09 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 193.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -208.1 MB). Peak memory consumption was 680.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60742.39 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 528.0 MB). Free memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: -433.5 MB). Peak memory consumption was 94.5 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...