java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:54:05,027 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:54:05,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:54:05,046 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:54:05,047 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:54:05,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:54:05,052 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:54:05,054 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:54:05,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:54:05,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:54:05,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:54:05,060 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:54:05,063 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:54:05,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:54:05,065 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:54:05,065 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:54:05,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:54:05,078 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:54:05,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:54:05,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:54:05,084 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:54:05,085 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:54:05,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:54:05,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:54:05,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:54:05,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:54:05,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:54:05,090 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:54:05,091 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:54:05,092 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:54:05,092 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:54:05,093 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:54:05,093 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:54:05,093 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:54:05,094 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:54:05,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:54:05,095 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 18:54:05,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:54:05,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:54:05,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:54:05,111 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:54:05,112 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:54:05,112 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:54:05,112 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:54:05,112 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:54:05,112 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:54:05,113 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:54:05,113 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:54:05,113 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:54:05,113 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:54:05,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:54:05,114 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:54:05,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:54:05,115 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:54:05,115 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:54:05,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:54:05,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:54:05,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:54:05,116 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:54:05,116 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:54:05,116 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:54:05,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:54:05,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:54:05,117 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:54:05,117 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:54:05,117 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:54:05,117 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:54:05,117 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:54:05,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:54:05,118 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:54:05,118 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:54:05,118 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:54:05,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:54:05,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:54:05,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:54:05,182 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:54:05,182 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:54:05,183 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-11-12 18:54:05,258 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bf16247/4bd8e5050c9c4f9cae0206a620e2b85e/FLAGfa035224d [2018-11-12 18:54:06,034 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:54:06,035 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-11-12 18:54:06,074 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bf16247/4bd8e5050c9c4f9cae0206a620e2b85e/FLAGfa035224d [2018-11-12 18:54:06,097 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bf16247/4bd8e5050c9c4f9cae0206a620e2b85e [2018-11-12 18:54:06,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:54:06,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:54:06,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:54:06,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:54:06,119 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:54:06,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:54:06" (1/1) ... [2018-11-12 18:54:06,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6a182c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:06, skipping insertion in model container [2018-11-12 18:54:06,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:54:06" (1/1) ... [2018-11-12 18:54:06,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:54:06,325 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:54:07,847 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:54:07,854 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:54:08,661 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:54:08,699 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:54:08,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08 WrapperNode [2018-11-12 18:54:08,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:54:08,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:54:08,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:54:08,701 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:54:08,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:54:09,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:54:09,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:54:09,115 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:54:09,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... [2018-11-12 18:54:09,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:54:09,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:54:09,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:54:09,390 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:54:09,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:54:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:54:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:54:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:54:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:54:09,467 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:54:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:54:09,467 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:54:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:54:09,468 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:54:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:54:09,468 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:54:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:54:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:54:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:54:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:54:18,927 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:54:18,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:54:18 BoogieIcfgContainer [2018-11-12 18:54:18,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:54:18,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:54:18,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:54:18,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:54:18,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:54:06" (1/3) ... [2018-11-12 18:54:18,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2760661b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:54:18, skipping insertion in model container [2018-11-12 18:54:18,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:54:08" (2/3) ... [2018-11-12 18:54:18,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2760661b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:54:18, skipping insertion in model container [2018-11-12 18:54:18,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:54:18" (3/3) ... [2018-11-12 18:54:18,936 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label05_true-unreach-call.c [2018-11-12 18:54:18,947 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:54:18,956 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:54:18,972 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:54:19,025 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:54:19,025 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:54:19,025 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:54:19,026 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:54:19,026 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:54:19,026 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:54:19,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:54:19,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:54:19,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 18:54:19,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-12 18:54:19,085 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:19,086 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, 1, 1] [2018-11-12 18:54:19,088 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:19,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:19,095 INFO L82 PathProgramCache]: Analyzing trace with hash -192700485, now seen corresponding path program 1 times [2018-11-12 18:54:19,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:19,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:19,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:19,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:19,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:19,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:19,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:54:19,581 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:19,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:54:19,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:54:19,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:54:19,612 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-12 18:54:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:32,550 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-11-12 18:54:32,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:54:32,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-12 18:54:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:32,611 INFO L225 Difference]: With dead ends: 3968 [2018-11-12 18:54:32,612 INFO L226 Difference]: Without dead ends: 2842 [2018-11-12 18:54:32,627 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:54:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-11-12 18:54:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-11-12 18:54:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-11-12 18:54:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-11-12 18:54:32,837 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 49 [2018-11-12 18:54:32,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:32,838 INFO L480 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-11-12 18:54:32,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:54:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-11-12 18:54:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-12 18:54:32,845 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:32,846 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, 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] [2018-11-12 18:54:32,846 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:32,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:32,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1544921282, now seen corresponding path program 1 times [2018-11-12 18:54:32,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:32,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:32,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:32,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:32,848 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:33,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:33,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:54:33,146 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:33,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:54:33,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:54:33,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:54:33,153 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-11-12 18:54:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:45,491 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-11-12 18:54:45,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:54:45,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-12 18:54:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:45,526 INFO L225 Difference]: With dead ends: 5673 [2018-11-12 18:54:45,526 INFO L226 Difference]: Without dead ends: 3698 [2018-11-12 18:54:45,534 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:54:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-11-12 18:54:45,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-11-12 18:54:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-11-12 18:54:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5870 transitions. [2018-11-12 18:54:45,652 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5870 transitions. Word has length 119 [2018-11-12 18:54:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:45,653 INFO L480 AbstractCegarLoop]: Abstraction has 3687 states and 5870 transitions. [2018-11-12 18:54:45,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:54:45,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5870 transitions. [2018-11-12 18:54:45,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-12 18:54:45,660 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:45,660 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, 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] [2018-11-12 18:54:45,666 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:45,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:45,667 INFO L82 PathProgramCache]: Analyzing trace with hash 745803618, now seen corresponding path program 1 times [2018-11-12 18:54:45,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:45,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:45,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:45,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:45,670 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:45,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:45,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:54:45,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:45,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:54:45,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:54:45,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:54:45,923 INFO L87 Difference]: Start difference. First operand 3687 states and 5870 transitions. Second operand 5 states. [2018-11-12 18:54:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:55,207 INFO L93 Difference]: Finished difference Result 10955 states and 17866 transitions. [2018-11-12 18:54:55,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:54:55,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-11-12 18:54:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:55,254 INFO L225 Difference]: With dead ends: 10955 [2018-11-12 18:54:55,254 INFO L226 Difference]: Without dead ends: 7274 [2018-11-12 18:54:55,272 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:54:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2018-11-12 18:54:55,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7167. [2018-11-12 18:54:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7167 states. [2018-11-12 18:54:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 10519 transitions. [2018-11-12 18:54:55,477 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 10519 transitions. Word has length 121 [2018-11-12 18:54:55,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:55,477 INFO L480 AbstractCegarLoop]: Abstraction has 7167 states and 10519 transitions. [2018-11-12 18:54:55,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:54:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 10519 transitions. [2018-11-12 18:54:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-12 18:54:55,480 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:55,481 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, 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] [2018-11-12 18:54:55,481 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:55,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:55,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2075646886, now seen corresponding path program 1 times [2018-11-12 18:54:55,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:55,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:55,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:55,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:55,483 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:55,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:55,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:54:55,716 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:55,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:54:55,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:54:55,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:54:55,718 INFO L87 Difference]: Start difference. First operand 7167 states and 10519 transitions. Second operand 4 states. [2018-11-12 18:55:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:55:04,967 INFO L93 Difference]: Finished difference Result 27645 states and 43286 transitions. [2018-11-12 18:55:04,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:55:04,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-11-12 18:55:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:55:05,072 INFO L225 Difference]: With dead ends: 27645 [2018-11-12 18:55:05,073 INFO L226 Difference]: Without dead ends: 20484 [2018-11-12 18:55:05,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:55:05,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20484 states. [2018-11-12 18:55:05,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20484 to 20445. [2018-11-12 18:55:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20445 states. [2018-11-12 18:55:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20445 states to 20445 states and 29105 transitions. [2018-11-12 18:55:05,622 INFO L78 Accepts]: Start accepts. Automaton has 20445 states and 29105 transitions. Word has length 165 [2018-11-12 18:55:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:55:05,624 INFO L480 AbstractCegarLoop]: Abstraction has 20445 states and 29105 transitions. [2018-11-12 18:55:05,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:55:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 20445 states and 29105 transitions. [2018-11-12 18:55:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-12 18:55:05,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:55:05,627 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, 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] [2018-11-12 18:55:05,627 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:55:05,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:05,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1150006652, now seen corresponding path program 1 times [2018-11-12 18:55:05,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:55:05,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:05,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:55:05,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:05,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:55:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:55:05,846 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:55:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:55:05,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:55:05,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:55:05,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:55:05,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:55:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:55:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:55:05,879 INFO L87 Difference]: Start difference. First operand 20445 states and 29105 transitions. Second operand 3 states. [2018-11-12 18:55:13,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:55:13,308 INFO L93 Difference]: Finished difference Result 58930 states and 88518 transitions. [2018-11-12 18:55:13,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:55:13,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2018-11-12 18:55:13,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:55:13,475 INFO L225 Difference]: With dead ends: 58930 [2018-11-12 18:55:13,475 INFO L226 Difference]: Without dead ends: 38491 [2018-11-12 18:55:13,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:55:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38491 states. [2018-11-12 18:55:14,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38491 to 38484. [2018-11-12 18:55:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38484 states. [2018-11-12 18:55:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38484 states to 38484 states and 54005 transitions. [2018-11-12 18:55:14,454 INFO L78 Accepts]: Start accepts. Automaton has 38484 states and 54005 transitions. Word has length 170 [2018-11-12 18:55:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:55:14,454 INFO L480 AbstractCegarLoop]: Abstraction has 38484 states and 54005 transitions. [2018-11-12 18:55:14,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:55:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 38484 states and 54005 transitions. [2018-11-12 18:55:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-12 18:55:14,523 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:55:14,523 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 18:55:14,524 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:55:14,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1475529496, now seen corresponding path program 1 times [2018-11-12 18:55:14,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:55:14,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:14,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:55:14,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:14,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:55:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:55:15,040 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:55:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 85 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-12 18:55:15,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:55:15,606 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:55:15,607 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-11-12 18:55:15,614 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2919], [2921], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3807], [3812], [3814], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:55:15,685 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:55:15,685 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:55:18,779 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:55:18,781 INFO L272 AbstractInterpreter]: Visited 220 different actions 647 times. Merged at 5 different actions 9 times. Never widened. Performed 12150 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12150 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:55:18,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:18,826 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:55:19,937 INFO L227 lantSequenceWeakener]: Weakened 388 states. On average, predicates are now at 71.11% of their original sizes. [2018-11-12 18:55:19,937 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:55:20,440 INFO L415 sIntCurrentIteration]: We unified 392 AI predicates to 392 [2018-11-12 18:55:20,440 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:55:20,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:55:20,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 18:55:20,442 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:55:20,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 18:55:20,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 18:55:20,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 18:55:20,444 INFO L87 Difference]: Start difference. First operand 38484 states and 54005 transitions. Second operand 11 states. [2018-11-12 18:55:30,367 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:56:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:49,200 INFO L93 Difference]: Finished difference Result 85048 states and 117190 transitions. [2018-11-12 18:56:49,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-12 18:56:49,201 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 393 [2018-11-12 18:56:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:49,417 INFO L225 Difference]: With dead ends: 85048 [2018-11-12 18:56:49,417 INFO L226 Difference]: Without dead ends: 46570 [2018-11-12 18:56:49,520 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 402 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2018-11-12 18:56:49,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46570 states. [2018-11-12 18:56:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46570 to 46561. [2018-11-12 18:56:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46561 states. [2018-11-12 18:56:50,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46561 states to 46561 states and 62310 transitions. [2018-11-12 18:56:50,859 INFO L78 Accepts]: Start accepts. Automaton has 46561 states and 62310 transitions. Word has length 393 [2018-11-12 18:56:50,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:50,860 INFO L480 AbstractCegarLoop]: Abstraction has 46561 states and 62310 transitions. [2018-11-12 18:56:50,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 18:56:50,860 INFO L276 IsEmpty]: Start isEmpty. Operand 46561 states and 62310 transitions. [2018-11-12 18:56:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2018-11-12 18:56:50,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:50,924 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:56:50,924 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:50,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1901164434, now seen corresponding path program 1 times [2018-11-12 18:56:50,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:50,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:50,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:50,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:50,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:51,463 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:56:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 128 proven. 11 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2018-11-12 18:56:53,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:56:53,014 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:56:53,014 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 481 with the following transitions: [2018-11-12 18:56:53,017 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2919], [2921], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3332], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3807], [3812], [3814], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:56:53,031 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:56:53,032 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:56:54,158 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:56:54,158 INFO L272 AbstractInterpreter]: Visited 221 different actions 650 times. Merged at 5 different actions 9 times. Never widened. Performed 12342 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12342 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:56:54,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:54,173 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:56:55,138 INFO L227 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 71.43% of their original sizes. [2018-11-12 18:56:55,139 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:56:59,438 INFO L415 sIntCurrentIteration]: We unified 479 AI predicates to 479 [2018-11-12 18:56:59,439 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:56:59,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:56:59,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 18:56:59,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:59,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 18:56:59,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 18:56:59,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-12 18:56:59,442 INFO L87 Difference]: Start difference. First operand 46561 states and 62310 transitions. Second operand 19 states. [2018-11-12 18:57:06,975 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 18:57:30,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-12 18:57:30,557 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:57:30,562 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:57:30,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:57:30 BoogieIcfgContainer [2018-11-12 18:57:30,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:57:30,563 INFO L168 Benchmark]: Toolchain (without parser) took 204452.81 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -301.6 MB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,565 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 18:57:30,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2586.11 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 413.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,567 INFO L168 Benchmark]: Boogie Preprocessor took 274.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,568 INFO L168 Benchmark]: RCFGBuilder took 9538.88 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 178.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 MB). Peak memory consumption was 673.6 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,569 INFO L168 Benchmark]: TraceAbstraction took 191633.22 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 508.0 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-12 18:57:30,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2586.11 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 413.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 274.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9538.88 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 178.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 MB). Peak memory consumption was 673.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191633.22 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 508.0 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (46561states) and FLOYD_HOARE automaton (currently 16 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (18952 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 191.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 172.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4567 SDtfs, 18711 SDslu, 3624 SDs, 0 SdLazy, 35122 SolverSat, 6358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 922 GetRequests, 681 SyntacticMatches, 180 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46561occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9982737195748229 AbsIntWeakeningRatio, 0.07347876004592423 AbsIntAvgWeakeningVarsNumRemoved, 17.742824339839267 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1497 NumberOfCodeBlocks, 1497 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1490 ConstructedInterpolants, 0 QuantifiedInterpolants, 1703703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 792/826 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown