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/Problem19_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:31:28,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:31:28,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:31:28,094 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:31:28,095 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:31:28,096 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:31:28,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:31:28,100 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:31:28,103 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:31:28,104 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:31:28,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:31:28,113 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:31:28,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:31:28,116 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:31:28,117 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:31:28,117 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:31:28,118 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:31:28,120 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:31:28,121 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:31:28,123 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:31:28,125 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:31:28,126 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:31:28,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:31:28,140 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:31:28,141 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:31:28,142 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:31:28,143 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:31:28,143 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 22:31:28,158 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:31:28,158 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:31:28,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:31:28,160 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:31:28,160 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:31:28,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:31:28,160 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:31:28,161 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:31:28,161 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:31:28,161 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:31:28,161 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:31:28,162 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:31:28,162 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:31:28,163 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:31:28,163 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:31:28,163 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:31:28,163 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:31:28,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:31:28,164 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:31:28,164 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:31:28,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:31:28,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:31:28,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:31:28,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:31:28,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:31:28,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:31:28,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:31:28,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:31:28,166 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:31:28,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:31:28,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:31:28,166 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:31:28,167 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:31:28,167 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:31:28,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:31:28,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:31:28,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:31:28,233 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:31:28,233 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:31:28,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-24 22:31:28,317 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28e6044cd/89c683309dca47c289ab398d7e290326/FLAGe0eca23f5 [2018-10-24 22:31:29,209 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:31:29,210 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-24 22:31:29,264 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28e6044cd/89c683309dca47c289ab398d7e290326/FLAGe0eca23f5 [2018-10-24 22:31:29,283 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28e6044cd/89c683309dca47c289ab398d7e290326 [2018-10-24 22:31:29,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:31:29,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:31:29,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:31:29,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:31:29,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:31:29,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:31:29" (1/1) ... [2018-10-24 22:31:29,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6863df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:29, skipping insertion in model container [2018-10-24 22:31:29,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:31:29" (1/1) ... [2018-10-24 22:31:29,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:31:29,609 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:31:31,680 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:31:31,686 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:31:32,886 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:31:32,951 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:31:32,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32 WrapperNode [2018-10-24 22:31:32,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:31:32,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:31:32,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:31:32,954 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:31:32,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:31:33,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:31:33,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:31:33,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:31:33,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:33,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:34,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (1/1) ... [2018-10-24 22:31:34,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:31:34,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:31:34,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:31:34,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:31:34,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (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 22:31:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:31:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:31:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 22:31:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 22:31:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 22:31:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 22:31:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 22:31:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 22:31:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:31:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:31:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:31:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:31:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:31:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:31:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:31:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:31:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:31:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:31:52,503 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:31:52,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:31:52 BoogieIcfgContainer [2018-10-24 22:31:52,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:31:52,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:31:52,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:31:52,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:31:52,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:31:29" (1/3) ... [2018-10-24 22:31:52,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14422fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:31:52, skipping insertion in model container [2018-10-24 22:31:52,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:31:32" (2/3) ... [2018-10-24 22:31:52,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14422fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:31:52, skipping insertion in model container [2018-10-24 22:31:52,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:31:52" (3/3) ... [2018-10-24 22:31:52,512 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44_true-unreach-call.c [2018-10-24 22:31:52,522 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:31:52,533 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:31:52,551 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:31:52,607 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:31:52,607 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:31:52,607 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:31:52,607 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:31:52,608 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:31:52,608 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:31:52,608 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:31:52,608 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:31:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 22:31:52,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-24 22:31:52,673 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:31:52,674 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 22:31:52,677 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:31:52,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:31:52,684 INFO L82 PathProgramCache]: Analyzing trace with hash -6596318, now seen corresponding path program 1 times [2018-10-24 22:31:52,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:31:52,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:31:52,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:31:52,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:31:52,747 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:31:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:31:53,152 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:31:53,274 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 22:31:53,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:31:53,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:31:53,277 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:31:53,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:31:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:31:53,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:31:53,303 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 22:32:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:32:13,082 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-10-24 22:32:13,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:32:13,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-10-24 22:32:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:32:13,145 INFO L225 Difference]: With dead ends: 4998 [2018-10-24 22:32:13,146 INFO L226 Difference]: Without dead ends: 3218 [2018-10-24 22:32:13,166 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 22:32:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-10-24 22:32:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-10-24 22:32:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-24 22:32:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-10-24 22:32:13,377 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 41 [2018-10-24 22:32:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:32:13,378 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-10-24 22:32:13,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:32:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-10-24 22:32:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-24 22:32:13,385 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:32:13,385 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] [2018-10-24 22:32:13,386 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:32:13,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:32:13,386 INFO L82 PathProgramCache]: Analyzing trace with hash -337507924, now seen corresponding path program 1 times [2018-10-24 22:32:13,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:32:13,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:32:13,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:32:13,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:32:13,388 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:32:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:32:13,794 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:32:14,197 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 22:32:14,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:32:14,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:32:14,198 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:32:14,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:32:14,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:32:14,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:32:14,201 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-10-24 22:32:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:32:43,912 INFO L93 Difference]: Finished difference Result 10735 states and 19755 transitions. [2018-10-24 22:32:43,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:32:43,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-24 22:32:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:32:43,956 INFO L225 Difference]: With dead ends: 10735 [2018-10-24 22:32:43,956 INFO L226 Difference]: Without dead ends: 7526 [2018-10-24 22:32:43,969 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:32:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2018-10-24 22:32:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7489. [2018-10-24 22:32:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7489 states. [2018-10-24 22:32:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7489 states to 7489 states and 12437 transitions. [2018-10-24 22:32:44,210 INFO L78 Accepts]: Start accepts. Automaton has 7489 states and 12437 transitions. Word has length 113 [2018-10-24 22:32:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:32:44,211 INFO L481 AbstractCegarLoop]: Abstraction has 7489 states and 12437 transitions. [2018-10-24 22:32:44,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:32:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7489 states and 12437 transitions. [2018-10-24 22:32:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 22:32:44,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:32:44,219 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] [2018-10-24 22:32:44,220 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:32:44,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:32:44,223 INFO L82 PathProgramCache]: Analyzing trace with hash -392526345, now seen corresponding path program 1 times [2018-10-24 22:32:44,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:32:44,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:32:44,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:32:44,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:32:44,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:32:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:32:44,507 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 22:32:44,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:32:44,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:32:44,508 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:32:44,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:32:44,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:32:44,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:32:44,509 INFO L87 Difference]: Start difference. First operand 7489 states and 12437 transitions. Second operand 6 states. [2018-10-24 22:33:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:33:10,675 INFO L93 Difference]: Finished difference Result 23887 states and 39948 transitions. [2018-10-24 22:33:10,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:33:10,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-24 22:33:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:33:10,741 INFO L225 Difference]: With dead ends: 23887 [2018-10-24 22:33:10,741 INFO L226 Difference]: Without dead ends: 16404 [2018-10-24 22:33:10,770 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 22:33:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16404 states. [2018-10-24 22:33:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16404 to 16215. [2018-10-24 22:33:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16215 states. [2018-10-24 22:33:11,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 25161 transitions. [2018-10-24 22:33:11,178 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 25161 transitions. Word has length 115 [2018-10-24 22:33:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:33:11,179 INFO L481 AbstractCegarLoop]: Abstraction has 16215 states and 25161 transitions. [2018-10-24 22:33:11,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:33:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 25161 transitions. [2018-10-24 22:33:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-24 22:33:11,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:33:11,183 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] [2018-10-24 22:33:11,183 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:33:11,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:33:11,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2002482604, now seen corresponding path program 1 times [2018-10-24 22:33:11,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:33:11,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:33:11,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:33:11,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:33:11,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:33:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:33:11,498 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 22:33:11,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:33:11,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:33:11,498 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:33:11,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:33:11,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:33:11,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:33:11,500 INFO L87 Difference]: Start difference. First operand 16215 states and 25161 transitions. Second operand 5 states. [2018-10-24 22:33:36,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:33:36,702 INFO L93 Difference]: Finished difference Result 48229 states and 76483 transitions. [2018-10-24 22:33:36,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:33:36,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-10-24 22:33:36,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:33:36,813 INFO L225 Difference]: With dead ends: 48229 [2018-10-24 22:33:36,813 INFO L226 Difference]: Without dead ends: 32020 [2018-10-24 22:33:36,852 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:33:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2018-10-24 22:33:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 31550. [2018-10-24 22:33:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31550 states. [2018-10-24 22:33:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31550 states to 31550 states and 44521 transitions. [2018-10-24 22:33:37,518 INFO L78 Accepts]: Start accepts. Automaton has 31550 states and 44521 transitions. Word has length 146 [2018-10-24 22:33:37,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:33:37,519 INFO L481 AbstractCegarLoop]: Abstraction has 31550 states and 44521 transitions. [2018-10-24 22:33:37,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:33:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 31550 states and 44521 transitions. [2018-10-24 22:33:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 22:33:37,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:33:37,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:37,530 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:33:37,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:33:37,534 INFO L82 PathProgramCache]: Analyzing trace with hash -995199702, now seen corresponding path program 1 times [2018-10-24 22:33:37,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:33:37,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:33:37,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:33:37,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:33:37,535 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:33:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:33:37,821 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:33:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 68 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:33:38,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:33:38,205 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:33:38,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-24 22:33:38,209 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5454], [5456], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 22:33:38,297 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:33:38,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:33:42,009 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:33:42,091 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:33:42,093 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 22:33:42,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:33:42,135 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:33:44,348 INFO L232 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 75.51% of their original sizes. [2018-10-24 22:33:44,351 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:33:44,819 INFO L413 sIntCurrentIteration]: We have 211 unified AI predicates [2018-10-24 22:33:44,819 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:33:44,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:33:44,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:33:44,821 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:33:44,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:33:44,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:33:44,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:33:44,822 INFO L87 Difference]: Start difference. First operand 31550 states and 44521 transitions. Second operand 7 states. Received shutdown request... [2018-10-24 22:35:03,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:35:03,501 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:35:03,508 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:35:03,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:35:03 BoogieIcfgContainer [2018-10-24 22:35:03,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:35:03,509 INFO L168 Benchmark]: Toolchain (without parser) took 214210.44 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,510 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 22:35:03,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3652.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 981.7 MB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 731.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.7 MB). Free memory was 981.7 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,515 INFO L168 Benchmark]: Boogie Preprocessor took 480.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,524 INFO L168 Benchmark]: RCFGBuilder took 18337.67 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 174.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 494.3 MB). Peak memory consumption was 668.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,525 INFO L168 Benchmark]: TraceAbstraction took 191003.11 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -756.5 MB). Peak memory consumption was 697.9 MB. Max. memory is 7.1 GB. [2018-10-24 22:35:03,536 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 3652.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 981.7 MB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 731.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.7 MB). Free memory was 981.7 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 480.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18337.67 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 174.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 494.3 MB). Peak memory consumption was 668.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191003.11 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -756.5 MB). Peak memory consumption was 697.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was constructing difference of abstraction (31550states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (24609 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 190.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 179.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3302 SDtfs, 22813 SDslu, 2905 SDs, 0 SdLazy, 39560 SolverSat, 9716 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 130.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 246 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31550occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9955960627050673 AbsIntWeakeningRatio, 0.13270142180094788 AbsIntAvgWeakeningVarsNumRemoved, 1032.255924170616 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 699 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 627 NumberOfCodeBlocks, 627 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 301082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 175/240 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown