java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 00:54:42,054 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 00:54:42,056 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 00:54:42,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 00:54:42,069 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 00:54:42,070 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 00:54:42,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 00:54:42,074 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 00:54:42,076 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 00:54:42,077 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 00:54:42,078 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 00:54:42,078 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 00:54:42,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 00:54:42,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 00:54:42,082 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 00:54:42,083 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 00:54:42,084 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 00:54:42,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 00:54:42,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 00:54:42,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 00:54:42,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 00:54:42,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 00:54:42,096 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 00:54:42,096 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 00:54:42,097 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 00:54:42,098 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 00:54:42,099 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 00:54:42,100 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 00:54:42,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 00:54:42,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 00:54:42,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 00:54:42,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 00:54:42,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 00:54:42,104 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 00:54:42,105 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 00:54:42,106 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 00:54:42,106 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 00:54:42,123 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 00:54:42,123 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 00:54:42,124 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 00:54:42,125 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 00:54:42,125 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 00:54:42,125 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 00:54:42,125 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 00:54:42,126 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 00:54:42,126 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 00:54:42,126 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 00:54:42,126 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 00:54:42,127 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 00:54:42,128 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 00:54:42,128 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 00:54:42,128 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 00:54:42,128 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 00:54:42,129 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 00:54:42,129 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 00:54:42,129 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 00:54:42,129 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 00:54:42,130 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 00:54:42,130 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 00:54:42,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 00:54:42,130 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 00:54:42,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 00:54:42,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 00:54:42,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 00:54:42,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 00:54:42,131 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 00:54:42,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 00:54:42,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 00:54:42,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 00:54:42,132 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 00:54:42,132 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 00:54:42,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 00:54:42,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 00:54:42,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 00:54:42,198 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 00:54:42,198 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 00:54:42,199 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-10-24 00:54:42,262 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/615d5cc41/b0c23be7d9204f6c9f8ff4b5c26824f6/FLAG51b10081c [2018-10-24 00:54:42,907 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 00:54:42,908 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30_true-unreach-call.c [2018-10-24 00:54:42,930 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/615d5cc41/b0c23be7d9204f6c9f8ff4b5c26824f6/FLAG51b10081c [2018-10-24 00:54:42,949 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/615d5cc41/b0c23be7d9204f6c9f8ff4b5c26824f6 [2018-10-24 00:54:42,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 00:54:42,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 00:54:42,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 00:54:42,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 00:54:42,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 00:54:42,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:42" (1/1) ... [2018-10-24 00:54:42,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a459524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:42, skipping insertion in model container [2018-10-24 00:54:42,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:54:42" (1/1) ... [2018-10-24 00:54:42,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 00:54:43,054 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 00:54:43,492 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:54:43,497 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 00:54:43,646 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:54:43,676 INFO L193 MainTranslator]: Completed translation [2018-10-24 00:54:43,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43 WrapperNode [2018-10-24 00:54:43,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 00:54:43,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 00:54:43,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 00:54:43,678 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 00:54:43,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 00:54:43,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 00:54:43,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 00:54:43,882 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 00:54:43,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:43,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (1/1) ... [2018-10-24 00:54:44,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 00:54:44,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 00:54:44,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 00:54:44,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 00:54:44,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (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 00:54:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 00:54:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 00:54:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 00:54:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 00:54:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 00:54:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 00:54:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 00:54:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 00:54:47,396 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 00:54:47,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:47 BoogieIcfgContainer [2018-10-24 00:54:47,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 00:54:47,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 00:54:47,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 00:54:47,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 00:54:47,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:54:42" (1/3) ... [2018-10-24 00:54:47,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2384b3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:47, skipping insertion in model container [2018-10-24 00:54:47,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:54:43" (2/3) ... [2018-10-24 00:54:47,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2384b3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:54:47, skipping insertion in model container [2018-10-24 00:54:47,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:54:47" (3/3) ... [2018-10-24 00:54:47,407 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label30_true-unreach-call.c [2018-10-24 00:54:47,421 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 00:54:47,430 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 00:54:47,448 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 00:54:47,487 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 00:54:47,487 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 00:54:47,487 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 00:54:47,487 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 00:54:47,487 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 00:54:47,488 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 00:54:47,488 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 00:54:47,488 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 00:54:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 00:54:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-24 00:54:47,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:47,525 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] [2018-10-24 00:54:47,528 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:47,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:47,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1431628569, now seen corresponding path program 1 times [2018-10-24 00:54:47,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:47,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:47,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:47,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:47,592 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:48,038 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:54:48,133 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 00:54:48,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:48,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 00:54:48,137 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:48,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 00:54:48,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 00:54:48,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:54:48,168 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 00:54:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:49,969 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 00:54:49,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 00:54:49,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-10-24 00:54:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:49,991 INFO L225 Difference]: With dead ends: 574 [2018-10-24 00:54:49,991 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 00:54:49,999 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 00:54:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 00:54:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 00:54:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 00:54:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 00:54:50,078 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 41 [2018-10-24 00:54:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:50,079 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 00:54:50,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 00:54:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 00:54:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 00:54:50,087 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:50,087 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:50,088 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:50,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:50,088 INFO L82 PathProgramCache]: Analyzing trace with hash -965604765, now seen corresponding path program 1 times [2018-10-24 00:54:50,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:50,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:50,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:50,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:50,091 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:50,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:50,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 00:54:50,401 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:50,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 00:54:50,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 00:54:50,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 00:54:50,405 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 00:54:53,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:53,934 INFO L93 Difference]: Finished difference Result 1289 states and 2315 transitions. [2018-10-24 00:54:53,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 00:54:53,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-10-24 00:54:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:53,943 INFO L225 Difference]: With dead ends: 1289 [2018-10-24 00:54:53,944 INFO L226 Difference]: Without dead ends: 939 [2018-10-24 00:54:53,952 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 00:54:53,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-10-24 00:54:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 926. [2018-10-24 00:54:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-10-24 00:54:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1444 transitions. [2018-10-24 00:54:54,011 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1444 transitions. Word has length 124 [2018-10-24 00:54:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:54,011 INFO L481 AbstractCegarLoop]: Abstraction has 926 states and 1444 transitions. [2018-10-24 00:54:54,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 00:54:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1444 transitions. [2018-10-24 00:54:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 00:54:54,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:54,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:54,018 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:54,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:54,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1367473027, now seen corresponding path program 1 times [2018-10-24 00:54:54,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:54,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:54,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:54,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:54,021 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:54,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:54,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:54:54,308 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:54,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:54:54,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:54:54,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:54:54,309 INFO L87 Difference]: Start difference. First operand 926 states and 1444 transitions. Second operand 6 states. [2018-10-24 00:54:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:58,167 INFO L93 Difference]: Finished difference Result 2537 states and 4091 transitions. [2018-10-24 00:54:58,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:54:58,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-24 00:54:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:58,187 INFO L225 Difference]: With dead ends: 2537 [2018-10-24 00:54:58,187 INFO L226 Difference]: Without dead ends: 1617 [2018-10-24 00:54:58,200 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 00:54:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2018-10-24 00:54:58,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1586. [2018-10-24 00:54:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2018-10-24 00:54:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2321 transitions. [2018-10-24 00:54:58,270 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2321 transitions. Word has length 140 [2018-10-24 00:54:58,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:58,271 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 2321 transitions. [2018-10-24 00:54:58,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:54:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2321 transitions. [2018-10-24 00:54:58,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-10-24 00:54:58,280 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:58,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:58,281 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:58,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:58,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1368152781, now seen corresponding path program 1 times [2018-10-24 00:54:58,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:58,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:58,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:58,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:58,284 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:58,635 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:54:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:58,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:58,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:54:58,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:58,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:54:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:54:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:54:58,848 INFO L87 Difference]: Start difference. First operand 1586 states and 2321 transitions. Second operand 6 states. [2018-10-24 00:54:59,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:59,986 INFO L93 Difference]: Finished difference Result 3508 states and 5316 transitions. [2018-10-24 00:54:59,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:54:59,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-10-24 00:54:59,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:55:00,001 INFO L225 Difference]: With dead ends: 3508 [2018-10-24 00:55:00,001 INFO L226 Difference]: Without dead ends: 1928 [2018-10-24 00:55:00,009 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 00:55:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-10-24 00:55:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1889. [2018-10-24 00:55:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2018-10-24 00:55:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2675 transitions. [2018-10-24 00:55:00,073 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2675 transitions. Word has length 164 [2018-10-24 00:55:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:55:00,074 INFO L481 AbstractCegarLoop]: Abstraction has 1889 states and 2675 transitions. [2018-10-24 00:55:00,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:55:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2675 transitions. [2018-10-24 00:55:00,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-24 00:55:00,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:55:00,081 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:55:00,081 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:55:00,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:00,082 INFO L82 PathProgramCache]: Analyzing trace with hash -443715368, now seen corresponding path program 1 times [2018-10-24 00:55:00,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:55:00,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:00,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:55:00,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:00,083 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:55:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:55:00,514 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 00:55:00,691 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 00:55:01,082 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 00:55:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:55:01,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:55:01,372 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:55:01,373 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-10-24 00:55:01,375 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [229], [231], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:55:01,444 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:55:01,445 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:55:03,915 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:55:17,635 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:55:17,640 INFO L272 AbstractInterpreter]: Visited 91 different actions 516 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 00:55:17,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:17,694 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:55:20,968 INFO L232 lantSequenceWeakener]: Weakened 17 states. On average, predicates are now at 77.81% of their original sizes. [2018-10-24 00:55:20,969 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 00:55:47,041 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 00:55:47,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 00:55:47,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [12] total 27 [2018-10-24 00:55:47,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:55:47,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 00:55:47,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 00:55:47,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-10-24 00:55:47,044 INFO L87 Difference]: Start difference. First operand 1889 states and 2675 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 00:58:52,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 00:58:52,409 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 00:58:52,416 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 00:58:52,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:58:52 BoogieIcfgContainer [2018-10-24 00:58:52,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 00:58:52,417 INFO L168 Benchmark]: Toolchain (without parser) took 249455.50 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -299.8 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 00:58:52,419 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 00:58:52,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 00:58:52,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 203.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 00:58:52,421 INFO L168 Benchmark]: Boogie Preprocessor took 125.50 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 00:58:52,422 INFO L168 Benchmark]: RCFGBuilder took 3389.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 132.0 MB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. [2018-10-24 00:58:52,423 INFO L168 Benchmark]: TraceAbstraction took 245017.53 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 347.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 00:58:52,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 203.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.50 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3389.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 132.0 MB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245017.53 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 347.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 106). Cancelled while BasicCegarLoop was constructing difference of abstraction (1889states) and FLOYD_HOARE automaton (currently 20 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (2204 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 244.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 195.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 453 SDtfs, 3554 SDslu, 451 SDs, 0 SdLazy, 4972 SolverSat, 1060 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 242 GetRequests, 169 SyntacticMatches, 32 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 27.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1889occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9941904047976015 AbsIntWeakeningRatio, 0.12807881773399016 AbsIntAvgWeakeningVarsNumRemoved, 214.3152709359606 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 673 NumberOfCodeBlocks, 673 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 811273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 248/250 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown