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/Problem12_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:24:32,033 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:24:32,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:24:32,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:24:32,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:24:32,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:24:32,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:24:32,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:24:32,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:24:32,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:24:32,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:24:32,056 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:24:32,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:24:32,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:24:32,060 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:24:32,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:24:32,062 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:24:32,066 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:24:32,074 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:24:32,077 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:24:32,078 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:24:32,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:24:32,086 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:24:32,097 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:24:32,098 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:24:32,099 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:24:32,100 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:24:32,101 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 21:24:32,131 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:24:32,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:24:32,132 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:24:32,132 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:24:32,132 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:24:32,132 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:24:32,136 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:24:32,137 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:24:32,137 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:24:32,137 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:24:32,137 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:24:32,137 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:24:32,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:24:32,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:24:32,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:24:32,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:24:32,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:24:32,139 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:24:32,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:24:32,141 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:24:32,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:24:32,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:24:32,142 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:24:32,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:24:32,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:24:32,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:24:32,143 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:24:32,143 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:24:32,143 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:24:32,144 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:24:32,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:24:32,144 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:24:32,144 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:24:32,144 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:24:32,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:24:32,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:24:32,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:24:32,231 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:24:32,232 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:24:32,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-10-24 21:24:32,297 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cef4cd41a/c8f2f9e196dd493ba7d042497cad21f4/FLAG78cd2db94 [2018-10-24 21:24:33,071 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:24:33,072 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-10-24 21:24:33,110 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cef4cd41a/c8f2f9e196dd493ba7d042497cad21f4/FLAG78cd2db94 [2018-10-24 21:24:33,127 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cef4cd41a/c8f2f9e196dd493ba7d042497cad21f4 [2018-10-24 21:24:33,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:24:33,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:24:33,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:24:33,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:24:33,146 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:24:33,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:24:33" (1/1) ... [2018-10-24 21:24:33,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5722cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:33, skipping insertion in model container [2018-10-24 21:24:33,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:24:33" (1/1) ... [2018-10-24 21:24:33,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:24:33,328 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:24:34,665 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:24:34,670 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:24:35,228 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:24:35,263 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:24:35,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35 WrapperNode [2018-10-24 21:24:35,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:24:35,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:24:35,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:24:35,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:24:35,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:24:35,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:24:35,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:24:35,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:24:35,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:35,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:36,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:36,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (1/1) ... [2018-10-24 21:24:36,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:24:36,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:24:36,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:24:36,085 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:24:36,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (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 21:24:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:24:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:24:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:24:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:24:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:24:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:24:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:24:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:24:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:24:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:24:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:24:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:24:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:24:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:24:48,304 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:24:48,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:24:48 BoogieIcfgContainer [2018-10-24 21:24:48,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:24:48,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:24:48,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:24:48,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:24:48,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:24:33" (1/3) ... [2018-10-24 21:24:48,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec09ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:24:48, skipping insertion in model container [2018-10-24 21:24:48,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:35" (2/3) ... [2018-10-24 21:24:48,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec09ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:24:48, skipping insertion in model container [2018-10-24 21:24:48,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:24:48" (3/3) ... [2018-10-24 21:24:48,314 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label47_true-unreach-call.c [2018-10-24 21:24:48,324 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:24:48,332 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:24:48,347 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:24:48,407 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:24:48,408 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:24:48,408 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:24:48,408 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:24:48,408 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:24:48,408 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:24:48,408 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:24:48,409 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:24:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 21:24:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-24 21:24:48,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:24:48,462 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:24:48,465 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:24:48,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:24:48,471 INFO L82 PathProgramCache]: Analyzing trace with hash 986841587, now seen corresponding path program 1 times [2018-10-24 21:24:48,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:24:48,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:48,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:24:48,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:48,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:24:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:24:48,924 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:24:49,066 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 21:24:49,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:24:49,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:24:49,075 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:24:49,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:24:49,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:24:49,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:24:49,121 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 21:24:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:24:56,791 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 21:24:56,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:24:56,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-10-24 21:24:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:24:56,843 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 21:24:56,844 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 21:24:56,861 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 21:24:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 21:24:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 21:24:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 21:24:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-10-24 21:24:57,064 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 45 [2018-10-24 21:24:57,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:24:57,065 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-10-24 21:24:57,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:24:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-10-24 21:24:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-24 21:24:57,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:24:57,073 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:24:57,074 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:24:57,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:24:57,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1872718060, now seen corresponding path program 1 times [2018-10-24 21:24:57,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:24:57,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:57,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:24:57,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:57,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:24:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:24:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:24:57,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:24:57,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:24:57,467 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:24:57,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:24:57,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:24:57,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:24:57,470 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-10-24 21:25:08,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:25:08,279 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-10-24 21:25:08,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:25:08,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-10-24 21:25:08,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:25:08,306 INFO L225 Difference]: With dead ends: 4818 [2018-10-24 21:25:08,307 INFO L226 Difference]: Without dead ends: 3220 [2018-10-24 21:25:08,313 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 21:25:08,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-10-24 21:25:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-10-24 21:25:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-10-24 21:25:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-10-24 21:25:08,423 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 119 [2018-10-24 21:25:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:25:08,424 INFO L481 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-10-24 21:25:08,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:25:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-10-24 21:25:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 21:25:08,432 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:25:08,435 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:08,436 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:25:08,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:25:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash 715820005, now seen corresponding path program 1 times [2018-10-24 21:25:08,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:25:08,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:08,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:25:08,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:08,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:25:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:25:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:25:08,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:25:08,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:25:08,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:25:08,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:25:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:25:08,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:25:08,734 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-10-24 21:25:22,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:25:22,096 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-10-24 21:25:22,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:25:22,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 21:25:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:25:22,148 INFO L225 Difference]: With dead ends: 11148 [2018-10-24 21:25:22,148 INFO L226 Difference]: Without dead ends: 7968 [2018-10-24 21:25:22,164 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 21:25:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-10-24 21:25:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-10-24 21:25:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-10-24 21:25:22,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-10-24 21:25:22,395 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 124 [2018-10-24 21:25:22,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:25:22,395 INFO L481 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-10-24 21:25:22,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:25:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-10-24 21:25:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 21:25:22,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:25:22,399 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:22,399 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:25:22,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:25:22,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1322155659, now seen corresponding path program 1 times [2018-10-24 21:25:22,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:25:22,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:22,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:25:22,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:22,401 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:25:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:25:22,693 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:25:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:25:23,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:25:23,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:25:23,077 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:25:23,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:25:23,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:25:23,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:25:23,079 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-10-24 21:25:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:25:34,001 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-10-24 21:25:34,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:25:34,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-10-24 21:25:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:25:34,070 INFO L225 Difference]: With dead ends: 22224 [2018-10-24 21:25:34,070 INFO L226 Difference]: Without dead ends: 14306 [2018-10-24 21:25:34,108 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:25:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-10-24 21:25:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-10-24 21:25:34,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-10-24 21:25:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-10-24 21:25:34,434 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 132 [2018-10-24 21:25:34,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:25:34,435 INFO L481 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-10-24 21:25:34,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:25:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-10-24 21:25:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 21:25:34,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:25:34,439 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:34,439 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:25:34,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:25:34,440 INFO L82 PathProgramCache]: Analyzing trace with hash 822542856, now seen corresponding path program 1 times [2018-10-24 21:25:34,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:25:34,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:34,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:25:34,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:34,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:25:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:25:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:25:34,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:25:34,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:25:34,948 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:25:34,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:25:34,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:25:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:25:34,950 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-10-24 21:25:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:25:56,274 INFO L93 Difference]: Finished difference Result 56457 states and 95976 transitions. [2018-10-24 21:25:56,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:25:56,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-24 21:25:56,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:25:56,506 INFO L225 Difference]: With dead ends: 56457 [2018-10-24 21:25:56,506 INFO L226 Difference]: Without dead ends: 42244 [2018-10-24 21:25:56,609 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:25:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42244 states. [2018-10-24 21:25:57,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42244 to 42002. [2018-10-24 21:25:57,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42002 states. [2018-10-24 21:25:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42002 states to 42002 states and 62979 transitions. [2018-10-24 21:25:57,967 INFO L78 Accepts]: Start accepts. Automaton has 42002 states and 62979 transitions. Word has length 149 [2018-10-24 21:25:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:25:57,968 INFO L481 AbstractCegarLoop]: Abstraction has 42002 states and 62979 transitions. [2018-10-24 21:25:57,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:25:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 42002 states and 62979 transitions. [2018-10-24 21:25:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-24 21:25:57,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:25:57,976 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:57,976 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:25:57,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:25:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash -891765791, now seen corresponding path program 1 times [2018-10-24 21:25:57,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:25:57,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:57,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:25:57,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:25:57,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:25:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:25:58,287 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:25:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:25:58,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:25:58,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:25:58,957 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:25:58,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:25:58,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:25:58,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:25:58,959 INFO L87 Difference]: Start difference. First operand 42002 states and 62979 transitions. Second operand 6 states. [2018-10-24 21:26:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:26:09,740 INFO L93 Difference]: Finished difference Result 104623 states and 165912 transitions. [2018-10-24 21:26:09,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:26:09,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2018-10-24 21:26:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:26:09,952 INFO L225 Difference]: With dead ends: 104623 [2018-10-24 21:26:09,952 INFO L226 Difference]: Without dead ends: 62627 [2018-10-24 21:26:10,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:26:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62627 states. [2018-10-24 21:26:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62627 to 62377. [2018-10-24 21:26:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62377 states. [2018-10-24 21:26:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62377 states to 62377 states and 87791 transitions. [2018-10-24 21:26:11,414 INFO L78 Accepts]: Start accepts. Automaton has 62377 states and 87791 transitions. Word has length 170 [2018-10-24 21:26:11,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:26:11,414 INFO L481 AbstractCegarLoop]: Abstraction has 62377 states and 87791 transitions. [2018-10-24 21:26:11,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:26:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand 62377 states and 87791 transitions. [2018-10-24 21:26:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-24 21:26:11,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:26:11,426 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:26:11,433 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:26:11,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:26:11,433 INFO L82 PathProgramCache]: Analyzing trace with hash -707609888, now seen corresponding path program 1 times [2018-10-24 21:26:11,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:26:11,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:26:11,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:26:11,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:26:11,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:26:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:26:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 76 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:26:11,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:26:11,709 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:26:11,710 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-10-24 21:26:11,712 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2396], [2397], [2400], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 21:26:11,789 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:26:11,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:26:14,155 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:26:14,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:26:14,366 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 21:26:14,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:26:14,379 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:26:16,881 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 75.61% of their original sizes. [2018-10-24 21:26:16,881 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:26:17,386 INFO L413 sIntCurrentIteration]: We have 203 unified AI predicates [2018-10-24 21:26:17,386 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:26:17,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:26:17,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-10-24 21:26:17,388 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:26:17,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 21:26:17,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 21:26:17,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:26:17,389 INFO L87 Difference]: Start difference. First operand 62377 states and 87791 transitions. Second operand 8 states. [2018-10-24 21:28:06,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:06,882 INFO L93 Difference]: Finished difference Result 125518 states and 176473 transitions. [2018-10-24 21:28:06,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:28:06,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2018-10-24 21:28:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:07,133 INFO L225 Difference]: With dead ends: 125518 [2018-10-24 21:28:07,133 INFO L226 Difference]: Without dead ends: 63147 [2018-10-24 21:28:07,292 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:28:07,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63147 states. [2018-10-24 21:28:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63147 to 63145. [2018-10-24 21:28:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63145 states. [2018-10-24 21:28:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63145 states to 63145 states and 88570 transitions. [2018-10-24 21:28:08,611 INFO L78 Accepts]: Start accepts. Automaton has 63145 states and 88570 transitions. Word has length 204 [2018-10-24 21:28:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:08,611 INFO L481 AbstractCegarLoop]: Abstraction has 63145 states and 88570 transitions. [2018-10-24 21:28:08,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 21:28:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 63145 states and 88570 transitions. [2018-10-24 21:28:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-24 21:28:08,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:08,618 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:28:08,618 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:08,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:08,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1796468920, now seen corresponding path program 1 times [2018-10-24 21:28:08,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:08,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:08,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:08,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:08,620 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-24 21:28:08,717 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,724 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,724 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,724 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,725 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,725 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,725 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,725 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,734 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,734 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,734 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,735 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,735 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,735 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,735 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,736 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,740 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,741 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,741 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,741 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,742 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,742 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,742 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,742 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,743 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,745 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,745 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,746 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,746 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,747 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,747 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,747 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,747 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,747 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,748 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,748 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,748 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,748 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,749 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,749 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-24 21:28:08,751 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:28:08,756 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:28:08,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:28:08 BoogieIcfgContainer [2018-10-24 21:28:08,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:28:08,758 INFO L168 Benchmark]: Toolchain (without parser) took 215618.40 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 1.4 GB in the end (delta: -21.7 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,759 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:28:08,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2122.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 536.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,761 INFO L168 Benchmark]: Boogie Preprocessor took 282.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,762 INFO L168 Benchmark]: RCFGBuilder took 12220.75 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 189.8 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -205.2 MB). Peak memory consumption was 685.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,763 INFO L168 Benchmark]: TraceAbstraction took 200450.29 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 978.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 21:28:08,768 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 2122.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 536.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 282.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12220.75 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 189.8 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -205.2 MB). Peak memory consumption was 685.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200450.29 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 978.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was analyzing trace of length 209 with TraceHistMax 3,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 207 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 200.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 185.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1765 SDtfs, 21910 SDslu, 1004 SDs, 0 SdLazy, 35443 SolverSat, 8503 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 138.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 260 GetRequests, 210 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63145occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9952254641909813 AbsIntWeakeningRatio, 0.1330049261083744 AbsIntAvgWeakeningVarsNumRemoved, 1040.935960591133 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 659 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 943 NumberOfCodeBlocks, 943 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 600470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 271/345 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown