java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem15_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:25:46,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:25:46,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:25:46,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:25:46,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:25:46,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:25:46,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:25:46,051 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:25:46,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:25:46,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:25:46,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:25:46,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:25:46,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:25:46,065 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:25:46,066 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:25:46,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:25:46,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:25:46,078 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:25:46,084 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:25:46,085 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:25:46,087 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:25:46,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:25:46,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:25:46,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:25:46,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:25:46,097 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:25:46,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:25:46,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:25:46,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:25:46,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:25:46,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:25:46,105 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:25:46,105 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:25:46,106 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:25:46,106 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:25:46,107 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:25:46,107 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:25:46,136 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:25:46,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:25:46,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:25:46,138 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:25:46,138 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:25:46,138 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:25:46,139 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:25:46,139 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:25:46,140 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:25:46,140 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:25:46,140 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:25:46,140 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:25:46,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:25:46,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:25:46,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:25:46,141 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:25:46,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:25:46,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:25:46,143 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:25:46,144 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:25:46,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:25:46,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:25:46,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:25:46,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:25:46,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:25:46,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:25:46,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:25:46,146 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:25:46,147 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:25:46,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:25:46,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:25:46,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:25:46,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:25:46,239 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:25:46,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-11-07 00:25:46,301 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b53e6c5c/b17ecdcf880a4fa483215e228b234a72/FLAG8d6b4627c [2018-11-07 00:25:47,043 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:25:47,044 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-11-07 00:25:47,079 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b53e6c5c/b17ecdcf880a4fa483215e228b234a72/FLAG8d6b4627c [2018-11-07 00:25:47,097 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b53e6c5c/b17ecdcf880a4fa483215e228b234a72 [2018-11-07 00:25:47,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:25:47,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:25:47,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:25:47,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:25:47,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:25:47,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:47" (1/1) ... [2018-11-07 00:25:47,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d6e334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:47, skipping insertion in model container [2018-11-07 00:25:47,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:47" (1/1) ... [2018-11-07 00:25:47,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:25:47,253 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:25:48,110 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:25:48,115 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:25:48,432 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:25:48,456 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:25:48,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48 WrapperNode [2018-11-07 00:25:48,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:25:48,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:25:48,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:25:48,458 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:25:48,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:25:48,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:25:48,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:25:48,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:25:48,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... [2018-11-07 00:25:48,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:25:48,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:25:48,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:25:48,840 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:25:48,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 00:25:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:25:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:25:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:25:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:25:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:25:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:25:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:25:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:25:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:25:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:25:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:25:54,588 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:25:54,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:54 BoogieIcfgContainer [2018-11-07 00:25:54,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:25:54,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:25:54,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:25:54,594 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:25:54,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:47" (1/3) ... [2018-11-07 00:25:54,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6188a874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:54, skipping insertion in model container [2018-11-07 00:25:54,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:48" (2/3) ... [2018-11-07 00:25:54,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6188a874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:54, skipping insertion in model container [2018-11-07 00:25:54,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:54" (3/3) ... [2018-11-07 00:25:54,598 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label34_false-unreach-call.c [2018-11-07 00:25:54,608 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:25:54,618 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:25:54,636 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:25:54,677 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:25:54,677 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:25:54,678 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:25:54,678 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:25:54,678 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:25:54,678 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:25:54,678 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:25:54,679 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:25:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 00:25:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-07 00:25:54,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:25:54,720 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] [2018-11-07 00:25:54,723 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:25:54,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:25:54,729 INFO L82 PathProgramCache]: Analyzing trace with hash 554449340, now seen corresponding path program 1 times [2018-11-07 00:25:54,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:25:54,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:54,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:25:54,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:25:54,787 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:25:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:25:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:25:55,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:25:55,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:25:55,165 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:25:55,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:25:55,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:25:55,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:25:55,195 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 00:26:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:26:01,641 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 00:26:01,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:26:01,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-07 00:26:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:26:01,673 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 00:26:01,673 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 00:26:01,684 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:26:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 00:26:01,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-11-07 00:26:01,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-11-07 00:26:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-11-07 00:26:01,814 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 20 [2018-11-07 00:26:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:26:01,815 INFO L480 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-11-07 00:26:01,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:26:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-11-07 00:26:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-07 00:26:01,821 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:26:01,821 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:26:01,821 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:26:01,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:26:01,822 INFO L82 PathProgramCache]: Analyzing trace with hash 219727794, now seen corresponding path program 1 times [2018-11-07 00:26:01,822 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:26:01,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:01,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:26:01,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:01,824 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:26:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:26:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:26:02,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:26:02,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:26:02,124 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:26:02,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:26:02,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:26:02,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:26:02,127 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-11-07 00:26:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:26:08,286 INFO L93 Difference]: Finished difference Result 3243 states and 5585 transitions. [2018-11-07 00:26:08,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:26:08,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-11-07 00:26:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:26:08,323 INFO L225 Difference]: With dead ends: 3243 [2018-11-07 00:26:08,324 INFO L226 Difference]: Without dead ends: 2158 [2018-11-07 00:26:08,330 INFO L604 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 [2018-11-07 00:26:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2018-11-07 00:26:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2114. [2018-11-07 00:26:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-11-07 00:26:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-11-07 00:26:08,425 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 93 [2018-11-07 00:26:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:26:08,426 INFO L480 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-11-07 00:26:08,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:26:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-11-07 00:26:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-07 00:26:08,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:26:08,433 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:26:08,433 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:26:08,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:26:08,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1955423070, now seen corresponding path program 1 times [2018-11-07 00:26:08,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:26:08,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:08,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:26:08,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:26:08,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:26:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:26:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:26:08,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:26:08,884 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:26:08,885 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-11-07 00:26:08,887 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:26:08,967 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:26:08,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:26:10,456 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:26:10,458 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:26:10,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:26:10,469 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:26:11,582 INFO L227 lantSequenceWeakener]: Weakened 96 states. On average, predicates are now at 77.51% of their original sizes. [2018-11-07 00:26:11,583 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:26:11,983 INFO L415 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2018-11-07 00:26:11,985 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:26:11,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:26:11,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-07 00:26:11,987 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:26:11,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:26:11,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:26:11,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:26:11,988 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 7 states. [2018-11-07 00:26:14,411 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:27:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:27:32,211 INFO L93 Difference]: Finished difference Result 4532 states and 6731 transitions. [2018-11-07 00:27:32,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:27:32,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2018-11-07 00:27:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:27:32,230 INFO L225 Difference]: With dead ends: 4532 [2018-11-07 00:27:32,231 INFO L226 Difference]: Without dead ends: 2424 [2018-11-07 00:27:32,238 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:27:32,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2018-11-07 00:27:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2422. [2018-11-07 00:27:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2018-11-07 00:27:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3492 transitions. [2018-11-07 00:27:32,306 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3492 transitions. Word has length 101 [2018-11-07 00:27:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:27:32,306 INFO L480 AbstractCegarLoop]: Abstraction has 2422 states and 3492 transitions. [2018-11-07 00:27:32,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 00:27:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3492 transitions. [2018-11-07 00:27:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-07 00:27:32,311 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:27:32,312 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:27:32,312 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:27:32,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:27:32,312 INFO L82 PathProgramCache]: Analyzing trace with hash -628352103, now seen corresponding path program 1 times [2018-11-07 00:27:32,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:27:32,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:27:32,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:27:32,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:27:32,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:27:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:27:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:27:33,199 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:27:33,199 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:27:33,200 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-11-07 00:27:33,200 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:27:33,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:27:33,208 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:27:34,305 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:27:38,875 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:27:38,876 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:27:38,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:27:38,907 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:27:41,432 INFO L227 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 77.84% of their original sizes. [2018-11-07 00:27:41,432 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:29:17,832 INFO L415 sIntCurrentIteration]: We unified 196 AI predicates to 196 [2018-11-07 00:29:17,833 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:29:17,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:29:17,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [11] total 30 [2018-11-07 00:29:17,833 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:17,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 00:29:17,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 00:29:17,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-11-07 00:29:17,835 INFO L87 Difference]: Start difference. First operand 2422 states and 3492 transitions. Second operand 21 states. Received shutdown request... [2018-11-07 00:29:35,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 00:29:35,948 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:29:35,953 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:29:35,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:29:35 BoogieIcfgContainer [2018-11-07 00:29:35,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:29:35,955 INFO L168 Benchmark]: Toolchain (without parser) took 228841.74 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,957 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:29:35,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1338.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 227.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,959 INFO L168 Benchmark]: Boogie Preprocessor took 153.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,960 INFO L168 Benchmark]: RCFGBuilder took 5750.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.5 MB). Peak memory consumption was 297.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,960 INFO L168 Benchmark]: TraceAbstraction took 221363.34 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -509.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 00:29:35,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1338.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 227.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5750.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.5 MB). Peak memory consumption was 297.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221363.34 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -509.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was constructing difference of abstraction (2422states) and FLOYD_HOARE automaton (currently 9 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (36 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 221.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 111.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 931 SDtfs, 2893 SDslu, 901 SDs, 0 SdLazy, 5409 SolverSat, 1070 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 317 GetRequests, 170 SyntacticMatches, 109 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 98.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2422occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9931820407363885 AbsIntWeakeningRatio, 0.1554054054054054 AbsIntAvgWeakeningVarsNumRemoved, 514.7567567567568 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 69 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 411 NumberOfCodeBlocks, 411 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 407 ConstructedInterpolants, 0 QuantifiedInterpolants, 447629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 122/133 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown