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/Problem17_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:12:10,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:12:10,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:12:11,005 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:12:11,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:12:11,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:12:11,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:12:11,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:12:11,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:12:11,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:12:11,015 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:12:11,015 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:12:11,016 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:12:11,021 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:12:11,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:12:11,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:12:11,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:12:11,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:12:11,038 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:12:11,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:12:11,041 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:12:11,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:12:11,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 22:12:11,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 22:12:11,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 22:12:11,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 22:12:11,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 22:12:11,055 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 22:12:11,058 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 22:12:11,062 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 22:12:11,063 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 22:12:11,063 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 22:12:11,064 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:12:11,064 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:12:11,067 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:12:11,068 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:12:11,069 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:12:11,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:12:11,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:12:11,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:12:11,106 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:12:11,106 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:12:11,107 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:12:11,107 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:12:11,107 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:12:11,107 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:12:11,107 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:12:11,108 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:12:11,108 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:12:11,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:12:11,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:12:11,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:12:11,110 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:12:11,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:12:11,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:12:11,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:12:11,111 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:12:11,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:12:11,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:12:11,113 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:12:11,113 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:12:11,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:12:11,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:12:11,114 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:12:11,114 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:12:11,114 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:12:11,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:12:11,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:12:11,115 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:12:11,115 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:12:11,115 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:12:11,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:12:11,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:12:11,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:12:11,192 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:12:11,192 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:12:11,193 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label42_true-unreach-call.c [2018-10-24 22:12:11,251 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/343469f3e/4d2d48af50354b659de64d2e8fa8df9a/FLAG9763ebe01 [2018-10-24 22:12:11,997 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:12:11,998 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label42_true-unreach-call.c [2018-10-24 22:12:12,028 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/343469f3e/4d2d48af50354b659de64d2e8fa8df9a/FLAG9763ebe01 [2018-10-24 22:12:12,049 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/343469f3e/4d2d48af50354b659de64d2e8fa8df9a [2018-10-24 22:12:12,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:12:12,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:12:12,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:12:12,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:12:12,070 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:12:12,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:12:12" (1/1) ... [2018-10-24 22:12:12,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a216523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:12, skipping insertion in model container [2018-10-24 22:12:12,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:12:12" (1/1) ... [2018-10-24 22:12:12,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:12:12,223 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:12:13,148 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:12:13,155 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:12:13,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:12:13,622 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:12:13,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13 WrapperNode [2018-10-24 22:12:13,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:12:13,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:12:13,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:12:13,624 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:12:13,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:13,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:12:14,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:12:14,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:12:14,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:12:14,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... [2018-10-24 22:12:14,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:12:14,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:12:14,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:12:14,400 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:12:14,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:12:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:12:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:12:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:12:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:12:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:12:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:12:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:12:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:12:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:12:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:12:26,273 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:12:26,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:12:26 BoogieIcfgContainer [2018-10-24 22:12:26,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:12:26,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:12:26,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:12:26,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:12:26,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:12:12" (1/3) ... [2018-10-24 22:12:26,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a9ddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:12:26, skipping insertion in model container [2018-10-24 22:12:26,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:12:13" (2/3) ... [2018-10-24 22:12:26,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a9ddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:12:26, skipping insertion in model container [2018-10-24 22:12:26,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:12:26" (3/3) ... [2018-10-24 22:12:26,289 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label42_true-unreach-call.c [2018-10-24 22:12:26,299 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:12:26,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:12:26,327 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:12:26,377 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:12:26,377 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:12:26,377 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:12:26,377 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:12:26,378 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:12:26,378 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:12:26,378 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:12:26,378 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:12:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:12:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-24 22:12:26,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:12:26,426 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, 1, 1] [2018-10-24 22:12:26,429 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:12:26,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:26,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1611453546, now seen corresponding path program 1 times [2018-10-24 22:12:26,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:12:26,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:26,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:12:26,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:26,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:12:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:12:27,016 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 22:12:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:12:27,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:12:27,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:12:27,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:12:27,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:12:27,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:12:27,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:12:27,057 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:12:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:12:38,693 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-24 22:12:38,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:12:38,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-10-24 22:12:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:12:38,736 INFO L225 Difference]: With dead ends: 2162 [2018-10-24 22:12:38,736 INFO L226 Difference]: Without dead ends: 1552 [2018-10-24 22:12:38,746 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:12:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-24 22:12:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-24 22:12:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-24 22:12:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-24 22:12:38,944 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 47 [2018-10-24 22:12:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:12:38,945 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-24 22:12:38,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:12:38,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-24 22:12:38,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-24 22:12:38,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:12:38,966 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, 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 22:12:38,966 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:12:38,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash 8594895, now seen corresponding path program 1 times [2018-10-24 22:12:38,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:12:38,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:38,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:12:38,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:38,969 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:12:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:12:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:12:39,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:12:39,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:12:39,309 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:12:39,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:12:39,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:12:39,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:12:39,312 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-24 22:12:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:12:49,690 INFO L93 Difference]: Finished difference Result 4431 states and 8042 transitions. [2018-10-24 22:12:49,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:12:49,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-24 22:12:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:12:49,729 INFO L225 Difference]: With dead ends: 4431 [2018-10-24 22:12:49,730 INFO L226 Difference]: Without dead ends: 2912 [2018-10-24 22:12:49,737 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:12:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2018-10-24 22:12:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2878. [2018-10-24 22:12:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2018-10-24 22:12:49,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4713 transitions. [2018-10-24 22:12:49,852 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4713 transitions. Word has length 123 [2018-10-24 22:12:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:12:49,853 INFO L481 AbstractCegarLoop]: Abstraction has 2878 states and 4713 transitions. [2018-10-24 22:12:49,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:12:49,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4713 transitions. [2018-10-24 22:12:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-24 22:12:49,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:12:49,863 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:12:49,863 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:12:49,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:49,864 INFO L82 PathProgramCache]: Analyzing trace with hash 427806551, now seen corresponding path program 1 times [2018-10-24 22:12:49,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:12:49,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:49,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:12:49,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:49,868 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:12:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:12:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:12:50,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:12:50,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:12:50,342 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:12:50,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:12:50,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:12:50,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:12:50,345 INFO L87 Difference]: Start difference. First operand 2878 states and 4713 transitions. Second operand 6 states. [2018-10-24 22:12:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:12:58,065 INFO L93 Difference]: Finished difference Result 7152 states and 11703 transitions. [2018-10-24 22:12:58,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:12:58,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-10-24 22:12:58,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:12:58,096 INFO L225 Difference]: With dead ends: 7152 [2018-10-24 22:12:58,096 INFO L226 Difference]: Without dead ends: 4280 [2018-10-24 22:12:58,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:12:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2018-10-24 22:12:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4238. [2018-10-24 22:12:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2018-10-24 22:12:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5870 transitions. [2018-10-24 22:12:58,226 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5870 transitions. Word has length 127 [2018-10-24 22:12:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:12:58,226 INFO L481 AbstractCegarLoop]: Abstraction has 4238 states and 5870 transitions. [2018-10-24 22:12:58,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:12:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5870 transitions. [2018-10-24 22:12:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 22:12:58,231 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:12:58,231 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:12:58,231 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:12:58,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:58,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1600198304, now seen corresponding path program 1 times [2018-10-24 22:12:58,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:12:58,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:58,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:12:58,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:58,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:12:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:12:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 22:12:58,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:12:58,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:12:58,510 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:12:58,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:12:58,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:12:58,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:12:58,512 INFO L87 Difference]: Start difference. First operand 4238 states and 5870 transitions. Second operand 3 states. [2018-10-24 22:13:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:13:02,628 INFO L93 Difference]: Finished difference Result 12003 states and 16910 transitions. [2018-10-24 22:13:02,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:13:02,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2018-10-24 22:13:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:13:02,666 INFO L225 Difference]: With dead ends: 12003 [2018-10-24 22:13:02,666 INFO L226 Difference]: Without dead ends: 7771 [2018-10-24 22:13:02,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:13:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7771 states. [2018-10-24 22:13:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7771 to 7770. [2018-10-24 22:13:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7770 states. [2018-10-24 22:13:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7770 states to 7770 states and 9967 transitions. [2018-10-24 22:13:02,884 INFO L78 Accepts]: Start accepts. Automaton has 7770 states and 9967 transitions. Word has length 211 [2018-10-24 22:13:02,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:13:02,885 INFO L481 AbstractCegarLoop]: Abstraction has 7770 states and 9967 transitions. [2018-10-24 22:13:02,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:13:02,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7770 states and 9967 transitions. [2018-10-24 22:13:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-24 22:13:02,893 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:13:02,894 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:13:02,895 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:13:02,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:13:02,896 INFO L82 PathProgramCache]: Analyzing trace with hash 758235929, now seen corresponding path program 1 times [2018-10-24 22:13:02,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:13:02,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:02,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:13:02,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:02,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:13:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:13:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 110 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:13:03,300 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:13:03,300 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:13:03,301 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-10-24 22:13:03,303 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [986], [988], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1215], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:13:03,377 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:13:03,378 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:13:06,252 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:13:06,585 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:13:06,586 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 22:13:06,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:13:06,597 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:13:09,169 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 75.58% of their original sizes. [2018-10-24 22:13:09,169 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:13:09,690 INFO L413 sIntCurrentIteration]: We have 229 unified AI predicates [2018-10-24 22:13:09,691 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:13:09,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:13:09,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-10-24 22:13:09,692 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:13:09,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 22:13:09,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 22:13:09,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:13:09,693 INFO L87 Difference]: Start difference. First operand 7770 states and 9967 transitions. Second operand 8 states. [2018-10-24 22:15:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:15:24,753 INFO L93 Difference]: Finished difference Result 15970 states and 20395 transitions. [2018-10-24 22:15:24,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:15:24,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2018-10-24 22:15:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:15:24,791 INFO L225 Difference]: With dead ends: 15970 [2018-10-24 22:15:24,791 INFO L226 Difference]: Without dead ends: 8206 [2018-10-24 22:15:24,819 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 223 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 22:15:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8206 states. [2018-10-24 22:15:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8206 to 8204. [2018-10-24 22:15:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2018-10-24 22:15:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 10412 transitions. [2018-10-24 22:15:25,014 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 10412 transitions. Word has length 230 [2018-10-24 22:15:25,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:15:25,015 INFO L481 AbstractCegarLoop]: Abstraction has 8204 states and 10412 transitions. [2018-10-24 22:15:25,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 22:15:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 10412 transitions. [2018-10-24 22:15:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-24 22:15:25,024 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:15:25,025 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:15:25,025 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:15:25,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:25,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1522756473, now seen corresponding path program 1 times [2018-10-24 22:15:25,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:15:25,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:25,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:25,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:25,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:15:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:25,414 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:15:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 113 proven. 48 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 22:15:25,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:15:25,831 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:15:25,832 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-10-24 22:15:25,832 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [986], [988], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1443], [1448], [1450], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:15:25,844 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:15:25,844 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:15:27,011 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:15:48,458 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 22:15:48,459 INFO L272 AbstractInterpreter]: Visited 134 different actions 519 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-24 22:15:48,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:48,470 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 22:15:48,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:15:48,471 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 22:15:48,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:48,484 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 22:15:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:48,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 22:15:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 22:15:48,836 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 22:15:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 22:15:49,452 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:15:49,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-10-24 22:15:49,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:15:49,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:15:49,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:15:49,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:15:49,454 INFO L87 Difference]: Start difference. First operand 8204 states and 10412 transitions. Second operand 3 states. [2018-10-24 22:15:54,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:15:54,977 INFO L93 Difference]: Finished difference Result 15968 states and 20422 transitions. [2018-10-24 22:15:54,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:15:54,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2018-10-24 22:15:54,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:15:55,013 INFO L225 Difference]: With dead ends: 15968 [2018-10-24 22:15:55,013 INFO L226 Difference]: Without dead ends: 8204 [2018-10-24 22:15:55,089 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 520 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:15:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8204 states. [2018-10-24 22:15:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8204 to 8204. [2018-10-24 22:15:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2018-10-24 22:15:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 9983 transitions. [2018-10-24 22:15:55,298 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 9983 transitions. Word has length 260 [2018-10-24 22:15:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:15:55,298 INFO L481 AbstractCegarLoop]: Abstraction has 8204 states and 9983 transitions. [2018-10-24 22:15:55,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:15:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 9983 transitions. [2018-10-24 22:15:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-10-24 22:15:55,307 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:15:55,307 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:15:55,308 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:15:55,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:55,308 INFO L82 PathProgramCache]: Analyzing trace with hash -114262375, now seen corresponding path program 1 times [2018-10-24 22:15:55,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:15:55,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:55,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:55,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:55,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:15:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:55,912 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 22:15:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 81 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-24 22:15:56,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:15:56,106 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:15:56,107 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-10-24 22:15:56,107 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [986], [988], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1547], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:15:56,118 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:15:56,118 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:15:58,009 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 22:16:01,737 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 22:16:01,737 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 22:16:01,738 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 22:16:01,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:16:01,738 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 22:16:01,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:01,748 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 22:16:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:01,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 22:16:01,864 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 22:16:02,065 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 22:16:02,066 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:16:02,071 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:16:02,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:16:02 BoogieIcfgContainer [2018-10-24 22:16:02,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:16:02,072 INFO L168 Benchmark]: Toolchain (without parser) took 230008.30 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,073 INFO L168 Benchmark]: CDTParser took 0.16 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 22:16:02,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1557.64 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 542.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -942.3 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,075 INFO L168 Benchmark]: Boogie Preprocessor took 232.37 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,076 INFO L168 Benchmark]: RCFGBuilder took 11879.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.4 MB). Peak memory consumption was 475.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,077 INFO L168 Benchmark]: TraceAbstraction took 215791.17 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -387.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 22:16:02,082 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1557.64 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 542.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -942.3 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.37 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11879.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.4 MB). Peak memory consumption was 475.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215791.17 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -387.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 128). Cancelled while BasicCegarLoop was analyzing trace of length 278 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 215.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 174.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2635 SDtfs, 6921 SDslu, 1311 SDs, 0 SdLazy, 11379 SolverSat, 3017 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 136.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 793 GetRequests, 754 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8204occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.5s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9957675512260664 AbsIntWeakeningRatio, 0.11790393013100436 AbsIntAvgWeakeningVarsNumRemoved, 1047.6157205240174 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1258 NumberOfCodeBlocks, 1258 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1510 ConstructedInterpolants, 0 QuantifiedInterpolants, 762707 SizeOfPredicates, 2 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 807/893 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown