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/Problem15_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:08:22,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:08:22,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:08:22,112 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:08:22,112 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:08:22,113 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:08:22,115 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:08:22,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:08:22,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:08:22,119 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:08:22,120 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:08:22,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:08:22,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:08:22,124 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:08:22,127 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:08:22,128 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:08:22,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:08:22,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:08:22,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:08:22,141 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:08:22,145 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:08:22,146 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:08:22,148 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:08:22,148 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:08:22,149 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:08:22,150 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:08:22,152 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:08:22,153 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:08:22,155 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:08:22,158 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:08:22,158 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:08:22,159 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:08:22,159 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:08:22,160 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:08:22,160 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:08:22,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:08:22,162 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 [2018-11-07 18:08:22,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:08:22,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:08:22,188 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:08:22,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:08:22,188 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:08:22,188 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:08:22,189 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:08:22,189 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:08:22,189 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:08:22,189 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:08:22,189 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:08:22,190 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:08:22,190 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:08:22,191 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:08:22,191 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:08:22,191 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:08:22,191 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:08:22,191 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:08:22,192 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:08:22,192 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:08:22,192 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:08:22,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:08:22,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:08:22,193 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:08:22,193 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:08:22,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:08:22,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:08:22,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:08:22,194 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:08:22,194 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:08:22,194 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:08:22,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:08:22,195 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:08:22,195 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:08:22,195 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:08:22,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:08:22,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:08:22,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:08:22,262 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:08:22,262 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:08:22,263 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label30_false-unreach-call.c [2018-11-07 18:08:22,335 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e51d249/e6ed29c9222a440f8f5b4be17bce77c9/FLAG8a48c7640 [2018-11-07 18:08:23,082 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:08:23,083 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label30_false-unreach-call.c [2018-11-07 18:08:23,120 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e51d249/e6ed29c9222a440f8f5b4be17bce77c9/FLAG8a48c7640 [2018-11-07 18:08:23,140 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e51d249/e6ed29c9222a440f8f5b4be17bce77c9 [2018-11-07 18:08:23,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:08:23,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:08:23,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:08:23,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:08:23,162 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:08:23,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:08:23" (1/1) ... [2018-11-07 18:08:23,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a15b74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:23, skipping insertion in model container [2018-11-07 18:08:23,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:08:23" (1/1) ... [2018-11-07 18:08:23,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:08:23,278 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:08:24,169 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:08:24,174 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:08:24,497 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:08:24,518 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:08:24,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24 WrapperNode [2018-11-07 18:08:24,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:08:24,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:08:24,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:08:24,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:08:24,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:08:24,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:08:24,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:08:24,757 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:08:24,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... [2018-11-07 18:08:24,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:08:24,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:08:24,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:08:24,907 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:08:24,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:08:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:08:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:08:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:08:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:08:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:08:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:08:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:08:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:08:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:08:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:08:30,469 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:08:30,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:08:30 BoogieIcfgContainer [2018-11-07 18:08:30,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:08:30,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:08:30,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:08:30,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:08:30,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:08:23" (1/3) ... [2018-11-07 18:08:30,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de7a357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:08:30, skipping insertion in model container [2018-11-07 18:08:30,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:08:24" (2/3) ... [2018-11-07 18:08:30,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de7a357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:08:30, skipping insertion in model container [2018-11-07 18:08:30,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:08:30" (3/3) ... [2018-11-07 18:08:30,478 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label30_false-unreach-call.c [2018-11-07 18:08:30,488 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:08:30,497 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:08:30,515 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:08:30,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:08:30,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:08:30,571 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:08:30,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:08:30,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:08:30,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:08:30,572 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:08:30,572 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:08:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 18:08:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-07 18:08:30,615 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:08:30,617 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] [2018-11-07 18:08:30,619 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:08:30,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:30,625 INFO L82 PathProgramCache]: Analyzing trace with hash 8064529, now seen corresponding path program 1 times [2018-11-07 18:08:30,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:08:30,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:30,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:08:30,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:30,673 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:08:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:08:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:08:31,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:08:31,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:08:31,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:08:31,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:08:31,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:08:31,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:08:31,076 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 18:08:37,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:08:37,622 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 18:08:37,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:08:37,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-07 18:08:37,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:08:37,653 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 18:08:37,654 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 18:08:37,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:08:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 18:08:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-11-07 18:08:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-11-07 18:08:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-11-07 18:08:37,783 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 21 [2018-11-07 18:08:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:08:37,784 INFO L480 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-11-07 18:08:37,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:08:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-11-07 18:08:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-07 18:08:37,793 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:08:37,794 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:08:37,794 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:08:37,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1407783292, now seen corresponding path program 1 times [2018-11-07 18:08:37,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:08:37,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:37,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:08:37,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:37,797 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:08:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:08:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:08:38,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:08:38,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 18:08:38,168 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:08:38,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 18:08:38,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 18:08:38,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 18:08:38,171 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-11-07 18:08:43,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:08:43,248 INFO L93 Difference]: Finished difference Result 3246 states and 5588 transitions. [2018-11-07 18:08:43,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 18:08:43,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-11-07 18:08:43,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:08:43,270 INFO L225 Difference]: With dead ends: 3246 [2018-11-07 18:08:43,270 INFO L226 Difference]: Without dead ends: 2161 [2018-11-07 18:08:43,277 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 [2018-11-07 18:08:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2018-11-07 18:08:43,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2114. [2018-11-07 18:08:43,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-11-07 18:08:43,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-11-07 18:08:43,382 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 94 [2018-11-07 18:08:43,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:08:43,382 INFO L480 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-11-07 18:08:43,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 18:08:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-11-07 18:08:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 18:08:43,388 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:08:43,388 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:08:43,388 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:08:43,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:43,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1696487028, now seen corresponding path program 1 times [2018-11-07 18:08:43,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:08:43,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:43,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:08:43,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:43,393 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:08:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:08:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:08:43,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:08:43,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:08:43,604 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:08:43,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:08:43,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:08:43,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:08:43,606 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-11-07 18:08:50,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:08:50,165 INFO L93 Difference]: Finished difference Result 7952 states and 12482 transitions. [2018-11-07 18:08:50,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:08:50,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2018-11-07 18:08:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:08:50,205 INFO L225 Difference]: With dead ends: 7952 [2018-11-07 18:08:50,205 INFO L226 Difference]: Without dead ends: 5844 [2018-11-07 18:08:50,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:08:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2018-11-07 18:08:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5841. [2018-11-07 18:08:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5841 states. [2018-11-07 18:08:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5841 states to 5841 states and 8212 transitions. [2018-11-07 18:08:50,415 INFO L78 Accepts]: Start accepts. Automaton has 5841 states and 8212 transitions. Word has length 102 [2018-11-07 18:08:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:08:50,416 INFO L480 AbstractCegarLoop]: Abstraction has 5841 states and 8212 transitions. [2018-11-07 18:08:50,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:08:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5841 states and 8212 transitions. [2018-11-07 18:08:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-07 18:08:50,423 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:08:50,423 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:08:50,423 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:08:50,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:50,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1098741362, now seen corresponding path program 1 times [2018-11-07 18:08:50,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:08:50,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:50,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:08:50,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:08:50,425 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:08:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:08:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:08:50,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:08:50,796 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:08:50,797 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-11-07 18:08:50,800 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:08:50,852 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:08:50,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:08:51,412 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:08:51,413 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 18:08:51,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:08:51,445 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:08:51,827 INFO L227 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 77.31% of their original sizes. [2018-11-07 18:08:51,827 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:08:52,266 INFO L415 sIntCurrentIteration]: We unified 132 AI predicates to 132 [2018-11-07 18:08:52,266 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:08:52,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:08:52,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-07 18:08:52,268 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:08:52,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 18:08:52,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 18:08:52,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 18:08:52,269 INFO L87 Difference]: Start difference. First operand 5841 states and 8212 transitions. Second operand 8 states. [2018-11-07 18:08:55,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:09:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:09:11,252 INFO L93 Difference]: Finished difference Result 11986 states and 16797 transitions. [2018-11-07 18:09:11,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 18:09:11,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2018-11-07 18:09:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:09:11,284 INFO L225 Difference]: With dead ends: 11986 [2018-11-07 18:09:11,285 INFO L226 Difference]: Without dead ends: 6151 [2018-11-07 18:09:11,315 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:09:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6151 states. [2018-11-07 18:09:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6151 to 6149. [2018-11-07 18:09:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6149 states. [2018-11-07 18:09:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 8528 transitions. [2018-11-07 18:09:11,492 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 8528 transitions. Word has length 133 [2018-11-07 18:09:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:09:11,493 INFO L480 AbstractCegarLoop]: Abstraction has 6149 states and 8528 transitions. [2018-11-07 18:09:11,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 18:09:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 8528 transitions. [2018-11-07 18:09:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-07 18:09:11,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:09:11,499 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:09:11,499 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:09:11,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:09:11,500 INFO L82 PathProgramCache]: Analyzing trace with hash 2137760452, now seen corresponding path program 1 times [2018-11-07 18:09:11,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:09:11,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:11,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:09:11,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:09:11,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:09:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:09:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:09:12,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:09:12,276 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:09:12,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-07 18:09:12,277 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:09:12,284 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:09:12,285 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:09:12,365 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:09:13,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:09:13,230 INFO L272 AbstractInterpreter]: Visited 120 different actions 804 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:09:13,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:09:13,238 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:09:13,804 INFO L227 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 77.53% of their original sizes. [2018-11-07 18:09:13,805 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:09:15,683 INFO L415 sIntCurrentIteration]: We unified 228 AI predicates to 228 [2018-11-07 18:09:15,684 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:09:15,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:09:15,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [11] total 29 [2018-11-07 18:09:15,684 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:09:15,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 18:09:15,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 18:09:15,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2018-11-07 18:09:15,687 INFO L87 Difference]: Start difference. First operand 6149 states and 8528 transitions. Second operand 20 states. [2018-11-07 18:10:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:10:04,684 INFO L93 Difference]: Finished difference Result 13953 states and 19048 transitions. [2018-11-07 18:10:04,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-07 18:10:04,684 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 229 [2018-11-07 18:10:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:10:04,721 INFO L225 Difference]: With dead ends: 13953 [2018-11-07 18:10:04,721 INFO L226 Difference]: Without dead ends: 8118 [2018-11-07 18:10:04,746 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 178 SyntacticMatches, 33 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2018-11-07 18:10:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2018-11-07 18:10:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7109. [2018-11-07 18:10:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7109 states. [2018-11-07 18:10:04,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 9533 transitions. [2018-11-07 18:10:04,938 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 9533 transitions. Word has length 229 [2018-11-07 18:10:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:10:04,939 INFO L480 AbstractCegarLoop]: Abstraction has 7109 states and 9533 transitions. [2018-11-07 18:10:04,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 18:10:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 9533 transitions. [2018-11-07 18:10:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-11-07 18:10:04,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:10:04,952 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:10:04,952 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:10:04,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:04,953 INFO L82 PathProgramCache]: Analyzing trace with hash -983275423, now seen corresponding path program 1 times [2018-11-07 18:10:04,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:10:04,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:04,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:04,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:04,954 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:10:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 17 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 18:10:06,184 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:06,185 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:10:06,185 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 409 with the following transitions: [2018-11-07 18:10:06,186 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:10:06,194 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:10:06,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:10:06,397 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:10:08,369 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:10:08,370 INFO L272 AbstractInterpreter]: Visited 284 different actions 1121 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:10:08,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:08,377 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:10:08,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:08,377 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 18:10:08,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:08,387 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:10:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:08,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:10:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:10:09,018 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 18:10:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:10:09,580 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:10:09,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-07 18:10:09,580 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:10:09,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 18:10:09,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 18:10:09,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:10:09,582 INFO L87 Difference]: Start difference. First operand 7109 states and 9533 transitions. Second operand 3 states. [2018-11-07 18:10:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:10:14,444 INFO L93 Difference]: Finished difference Result 15793 states and 22573 transitions. [2018-11-07 18:10:14,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:10:14,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2018-11-07 18:10:14,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:10:14,513 INFO L225 Difference]: With dead ends: 15793 [2018-11-07 18:10:14,514 INFO L226 Difference]: Without dead ends: 9958 [2018-11-07 18:10:14,543 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 819 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:10:14,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2018-11-07 18:10:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 9954. [2018-11-07 18:10:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9954 states. [2018-11-07 18:10:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9954 states to 9954 states and 13612 transitions. [2018-11-07 18:10:14,832 INFO L78 Accepts]: Start accepts. Automaton has 9954 states and 13612 transitions. Word has length 408 [2018-11-07 18:10:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:10:14,834 INFO L480 AbstractCegarLoop]: Abstraction has 9954 states and 13612 transitions. [2018-11-07 18:10:14,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 18:10:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9954 states and 13612 transitions. [2018-11-07 18:10:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2018-11-07 18:10:14,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:10:14,854 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:10:14,854 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:10:14,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:14,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1997741948, now seen corresponding path program 1 times [2018-11-07 18:10:14,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:10:14,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:14,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:10:14,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:10:14,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:10:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:10:15,841 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 18:10:16,076 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 18:10:16,470 WARN L179 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-11-07 18:10:16,789 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-07 18:10:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 168 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:10:18,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:10:18,087 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:10:18,087 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 455 with the following transitions: [2018-11-07 18:10:18,088 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [601], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:10:18,100 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:10:18,100 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:10:18,193 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:10:18,997 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:10:18,997 INFO L272 AbstractInterpreter]: Visited 284 different actions 564 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:10:19,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:10:19,034 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:10:19,951 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 77.89% of their original sizes. [2018-11-07 18:10:19,952 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:10:21,857 INFO L415 sIntCurrentIteration]: We unified 453 AI predicates to 453 [2018-11-07 18:10:21,858 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:10:21,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:10:21,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [15] total 33 [2018-11-07 18:10:21,859 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:10:21,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 18:10:21,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 18:10:21,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-07 18:10:21,862 INFO L87 Difference]: Start difference. First operand 9954 states and 13612 transitions. Second operand 20 states. [2018-11-07 18:11:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:11,657 INFO L93 Difference]: Finished difference Result 19865 states and 27473 transitions. [2018-11-07 18:11:11,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 18:11:11,658 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 454 [2018-11-07 18:11:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:11,700 INFO L225 Difference]: With dead ends: 19865 [2018-11-07 18:11:11,700 INFO L226 Difference]: Without dead ends: 11185 [2018-11-07 18:11:11,723 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 470 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2018-11-07 18:11:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11185 states. [2018-11-07 18:11:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11185 to 11178. [2018-11-07 18:11:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11178 states. [2018-11-07 18:11:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11178 states to 11178 states and 14945 transitions. [2018-11-07 18:11:11,965 INFO L78 Accepts]: Start accepts. Automaton has 11178 states and 14945 transitions. Word has length 454 [2018-11-07 18:11:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:11,966 INFO L480 AbstractCegarLoop]: Abstraction has 11178 states and 14945 transitions. [2018-11-07 18:11:11,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 18:11:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11178 states and 14945 transitions. [2018-11-07 18:11:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2018-11-07 18:11:11,984 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:11,984 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:11,984 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:11,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:11,985 INFO L82 PathProgramCache]: Analyzing trace with hash -494721740, now seen corresponding path program 1 times [2018-11-07 18:11:11,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:11,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:11,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:11,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:11,986 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:12,755 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 18:11:12,966 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-07 18:11:13,645 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 18:11:13,972 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-07 18:11:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 50 proven. 253 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 18:11:14,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:14,657 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:11:14,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 486 with the following transitions: [2018-11-07 18:11:14,658 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [601], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:11:14,663 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:11:14,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:11:14,729 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:11:16,208 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:11:16,208 INFO L272 AbstractInterpreter]: Visited 285 different actions 1125 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:11:16,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:16,214 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:11:16,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:16,214 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 18:11:16,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:16,225 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:11:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:16,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:11:55,425 WARN L179 SmtUtils]: Spent 38.29 s on a formula simplification. DAG size of input: 1387 DAG size of output: 114 [2018-11-07 18:11:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:11:55,754 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 18:11:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:11:56,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 18:11:56,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 16 [2018-11-07 18:11:56,141 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 18:11:56,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 18:11:56,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 18:11:56,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-11-07 18:11:56,143 INFO L87 Difference]: Start difference. First operand 11178 states and 14945 transitions. Second operand 14 states. Received shutdown request... [2018-11-07 18:11:58,245 WARN L187 SmtUtils]: Removed 7 from assertion stack [2018-11-07 18:11:58,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:11:58,246 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:11:58,250 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:11:58,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:11:58 BoogieIcfgContainer [2018-11-07 18:11:58,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:11:58,252 INFO L168 Benchmark]: Toolchain (without parser) took 215097.53 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -387.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,253 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:11:58,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1362.21 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 236.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,255 INFO L168 Benchmark]: Boogie Preprocessor took 148.99 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,256 INFO L168 Benchmark]: RCFGBuilder took 5563.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 292.5 MB). Peak memory consumption was 292.5 MB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,256 INFO L168 Benchmark]: TraceAbstraction took 207779.77 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 96.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 18:11:58,261 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1362.21 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 236.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.99 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5563.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 292.5 MB). Peak memory consumption was 292.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207779.77 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 96.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was constructing difference of abstraction (11178states) and FLOYD_HOARE automaton (currently 3 states, 14 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 120. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 207.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 143.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2806 SDtfs, 13755 SDslu, 1843 SDs, 0 SdLazy, 19843 SolverSat, 2270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2677 GetRequests, 2534 SyntacticMatches, 35 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 47.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11178occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.3s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9973448990337034 AbsIntWeakeningRatio, 0.0959409594095941 AbsIntAvgWeakeningVarsNumRemoved, 13.07380073800738 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 1095 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 47.5s InterpolantComputationTime, 2819 NumberOfCodeBlocks, 2819 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3700 ConstructedInterpolants, 24 QuantifiedInterpolants, 9245732 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1293 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 1288/1787 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown