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/Problem16_label15_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:12:53,596 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:12:53,598 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:12:53,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:12:53,611 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:12:53,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:12:53,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:12:53,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:12:53,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:12:53,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:12:53,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:12:53,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:12:53,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:12:53,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:12:53,628 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:12:53,629 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:12:53,630 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:12:53,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:12:53,643 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:12:53,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:12:53,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:12:53,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:12:53,657 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:12:53,657 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:12:53,657 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:12:53,658 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:12:53,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:12:53,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:12:53,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:12:53,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:12:53,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:12:53,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:12:53,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:12:53,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:12:53,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:12:53,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:12:53,665 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 18:12:53,683 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:12:53,683 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:12:53,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:12:53,685 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:12:53,685 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:12:53,685 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:12:53,686 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:12:53,687 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:12:53,688 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:12:53,688 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:12:53,688 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:12:53,690 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:12:53,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:12:53,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:12:53,691 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:12:53,691 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:12:53,691 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:12:53,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:12:53,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:12:53,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:12:53,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:12:53,692 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:12:53,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:12:53,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:12:53,693 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:12:53,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:12:53,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:12:53,695 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:12:53,695 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:12:53,696 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:12:53,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:12:53,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:12:53,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:12:53,769 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:12:53,769 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:12:53,770 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label15_false-unreach-call.c [2018-11-07 18:12:53,838 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6ec1fba/10293098b5cf4f6fbb50b627b5e15ac3/FLAG39ecaff7d [2018-11-07 18:12:54,511 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:12:54,511 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label15_false-unreach-call.c [2018-11-07 18:12:54,529 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6ec1fba/10293098b5cf4f6fbb50b627b5e15ac3/FLAG39ecaff7d [2018-11-07 18:12:54,547 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6ec1fba/10293098b5cf4f6fbb50b627b5e15ac3 [2018-11-07 18:12:54,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:12:54,560 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:12:54,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:12:54,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:12:54,565 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:12:54,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:12:54" (1/1) ... [2018-11-07 18:12:54,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4594bf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:54, skipping insertion in model container [2018-11-07 18:12:54,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:12:54" (1/1) ... [2018-11-07 18:12:54,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:12:54,673 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:12:55,437 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:12:55,442 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:12:55,769 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:12:55,790 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:12:55,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55 WrapperNode [2018-11-07 18:12:55,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:12:55,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:12:55,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:12:55,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:12:55,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:55,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:55,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:12:55,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:12:55,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:12:55,996 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:12:56,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (1/1) ... [2018-11-07 18:12:56,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:12:56,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:12:56,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:12:56,161 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:12:56,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (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 18:12:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:12:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:12:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:12:56,240 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:12:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:12:56,240 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:12:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:12:56,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:12:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:12:56,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:12:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:13:01,998 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:13:01,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:13:01 BoogieIcfgContainer [2018-11-07 18:13:01,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:13:02,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:13:02,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:13:02,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:13:02,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:12:54" (1/3) ... [2018-11-07 18:13:02,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c182189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:13:02, skipping insertion in model container [2018-11-07 18:13:02,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:12:55" (2/3) ... [2018-11-07 18:13:02,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c182189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:13:02, skipping insertion in model container [2018-11-07 18:13:02,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:13:01" (3/3) ... [2018-11-07 18:13:02,008 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label15_false-unreach-call.c [2018-11-07 18:13:02,019 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:13:02,028 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:13:02,044 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:13:02,086 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:13:02,087 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:13:02,087 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:13:02,087 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:13:02,087 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:13:02,087 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:13:02,088 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:13:02,088 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:13:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 18:13:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-07 18:13:02,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:02,138 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] [2018-11-07 18:13:02,140 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:02,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1965718299, now seen corresponding path program 1 times [2018-11-07 18:13:02,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:02,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:02,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:02,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:02,195 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:02,515 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 18:13:02,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:02,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:13:02,520 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:02,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:13:02,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:13:02,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:13:02,552 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 18:13:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:07,898 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 18:13:07,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:13:07,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-07 18:13:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:07,928 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 18:13:07,928 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 18:13:07,938 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 18:13:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 18:13:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-11-07 18:13:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 18:13:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1357 transitions. [2018-11-07 18:13:08,051 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1357 transitions. Word has length 29 [2018-11-07 18:13:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:08,051 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1357 transitions. [2018-11-07 18:13:08,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:13:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1357 transitions. [2018-11-07 18:13:08,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-07 18:13:08,058 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:08,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:08,059 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:08,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:08,059 INFO L82 PathProgramCache]: Analyzing trace with hash -2135341492, now seen corresponding path program 1 times [2018-11-07 18:13:08,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:08,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:08,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:08,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:08,061 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:13:08,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:08,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 18:13:08,495 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:08,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 18:13:08,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 18:13:08,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 18:13:08,498 INFO L87 Difference]: Start difference. First operand 744 states and 1357 transitions. Second operand 5 states. [2018-11-07 18:13:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:13,081 INFO L93 Difference]: Finished difference Result 2196 states and 4092 transitions. [2018-11-07 18:13:13,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:13:13,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2018-11-07 18:13:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:13,096 INFO L225 Difference]: With dead ends: 2196 [2018-11-07 18:13:13,096 INFO L226 Difference]: Without dead ends: 1458 [2018-11-07 18:13:13,100 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 18:13:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-11-07 18:13:13,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-11-07 18:13:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-07 18:13:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2551 transitions. [2018-11-07 18:13:13,181 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2551 transitions. Word has length 99 [2018-11-07 18:13:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:13,182 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 2551 transitions. [2018-11-07 18:13:13,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 18:13:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2551 transitions. [2018-11-07 18:13:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 18:13:13,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:13,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:13,187 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:13,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:13,187 INFO L82 PathProgramCache]: Analyzing trace with hash 558578681, now seen corresponding path program 1 times [2018-11-07 18:13:13,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:13,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:13,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:13,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:13,189 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:13:13,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:13,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:13:13,442 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:13,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:13:13,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:13:13,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:13:13,443 INFO L87 Difference]: Start difference. First operand 1438 states and 2551 transitions. Second operand 6 states. [2018-11-07 18:13:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:18,030 INFO L93 Difference]: Finished difference Result 4237 states and 7540 transitions. [2018-11-07 18:13:18,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:13:18,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-11-07 18:13:18,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:18,054 INFO L225 Difference]: With dead ends: 4237 [2018-11-07 18:13:18,055 INFO L226 Difference]: Without dead ends: 2805 [2018-11-07 18:13:18,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:13:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2018-11-07 18:13:18,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2785. [2018-11-07 18:13:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2018-11-07 18:13:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4352 transitions. [2018-11-07 18:13:18,165 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4352 transitions. Word has length 102 [2018-11-07 18:13:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:18,166 INFO L480 AbstractCegarLoop]: Abstraction has 2785 states and 4352 transitions. [2018-11-07 18:13:18,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:13:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4352 transitions. [2018-11-07 18:13:18,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-07 18:13:18,169 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:18,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:18,176 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:18,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:18,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2114066796, now seen corresponding path program 1 times [2018-11-07 18:13:18,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:18,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:18,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:18,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:18,178 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:18,387 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:13:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:13:18,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:18,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:13:18,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:18,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:13:18,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:13:18,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:13:18,436 INFO L87 Difference]: Start difference. First operand 2785 states and 4352 transitions. Second operand 6 states. [2018-11-07 18:13:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:22,332 INFO L93 Difference]: Finished difference Result 6952 states and 11048 transitions. [2018-11-07 18:13:22,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:13:22,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-11-07 18:13:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:22,364 INFO L225 Difference]: With dead ends: 6952 [2018-11-07 18:13:22,364 INFO L226 Difference]: Without dead ends: 4173 [2018-11-07 18:13:22,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:13:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4173 states. [2018-11-07 18:13:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4173 to 4153. [2018-11-07 18:13:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2018-11-07 18:13:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5896 transitions. [2018-11-07 18:13:22,502 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5896 transitions. Word has length 103 [2018-11-07 18:13:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:22,503 INFO L480 AbstractCegarLoop]: Abstraction has 4153 states and 5896 transitions. [2018-11-07 18:13:22,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:13:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5896 transitions. [2018-11-07 18:13:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-07 18:13:22,505 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:22,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:22,505 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:22,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:22,506 INFO L82 PathProgramCache]: Analyzing trace with hash -377282367, now seen corresponding path program 1 times [2018-11-07 18:13:22,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:22,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:22,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:22,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:22,507 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:13:22,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:22,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:13:22,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:22,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:13:22,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:13:22,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:13:22,676 INFO L87 Difference]: Start difference. First operand 4153 states and 5896 transitions. Second operand 6 states. [2018-11-07 18:13:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:26,706 INFO L93 Difference]: Finished difference Result 11374 states and 16767 transitions. [2018-11-07 18:13:26,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:13:26,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-11-07 18:13:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:26,749 INFO L225 Difference]: With dead ends: 11374 [2018-11-07 18:13:26,750 INFO L226 Difference]: Without dead ends: 7227 [2018-11-07 18:13:26,780 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:13:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2018-11-07 18:13:26,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 7152. [2018-11-07 18:13:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7152 states. [2018-11-07 18:13:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 9826 transitions. [2018-11-07 18:13:26,979 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 9826 transitions. Word has length 106 [2018-11-07 18:13:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:26,979 INFO L480 AbstractCegarLoop]: Abstraction has 7152 states and 9826 transitions. [2018-11-07 18:13:26,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:13:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 9826 transitions. [2018-11-07 18:13:26,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-07 18:13:26,982 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:26,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:26,983 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:26,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash -996963759, now seen corresponding path program 1 times [2018-11-07 18:13:26,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:26,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:26,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:26,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:26,985 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:27,251 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:13:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:13:27,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:13:27,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:13:27,562 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:27,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:13:27,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:13:27,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:13:27,564 INFO L87 Difference]: Start difference. First operand 7152 states and 9826 transitions. Second operand 6 states. [2018-11-07 18:13:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:30,513 INFO L93 Difference]: Finished difference Result 17771 states and 25546 transitions. [2018-11-07 18:13:30,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:13:30,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-11-07 18:13:30,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:30,574 INFO L225 Difference]: With dead ends: 17771 [2018-11-07 18:13:30,574 INFO L226 Difference]: Without dead ends: 10625 [2018-11-07 18:13:30,605 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:13:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10625 states. [2018-11-07 18:13:30,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10625 to 10585. [2018-11-07 18:13:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10585 states. [2018-11-07 18:13:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10585 states to 10585 states and 13819 transitions. [2018-11-07 18:13:30,986 INFO L78 Accepts]: Start accepts. Automaton has 10585 states and 13819 transitions. Word has length 114 [2018-11-07 18:13:30,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:30,987 INFO L480 AbstractCegarLoop]: Abstraction has 10585 states and 13819 transitions. [2018-11-07 18:13:30,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:13:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 10585 states and 13819 transitions. [2018-11-07 18:13:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 18:13:30,989 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:30,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:30,990 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:30,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:30,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1532470232, now seen corresponding path program 1 times [2018-11-07 18:13:30,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:30,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:30,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:30,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:30,996 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:31,270 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:13:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 18:13:31,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:13:31,453 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:13:31,454 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-11-07 18:13:31,460 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [311], [313], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:13:31,524 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:13:31,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:13:32,212 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:13:32,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:13:32,747 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:13:32,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:32,792 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:13:33,276 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 81.82% of their original sizes. [2018-11-07 18:13:33,276 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:13:34,091 INFO L415 sIntCurrentIteration]: We unified 120 AI predicates to 120 [2018-11-07 18:13:34,092 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:13:34,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:13:34,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 17 [2018-11-07 18:13:34,093 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:13:34,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 18:13:34,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 18:13:34,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-07 18:13:34,094 INFO L87 Difference]: Start difference. First operand 10585 states and 13819 transitions. Second operand 15 states. [2018-11-07 18:14:10,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:14:10,578 INFO L93 Difference]: Finished difference Result 24146 states and 31195 transitions. [2018-11-07 18:14:10,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 18:14:10,578 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 121 [2018-11-07 18:14:10,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:14:10,619 INFO L225 Difference]: With dead ends: 24146 [2018-11-07 18:14:10,620 INFO L226 Difference]: Without dead ends: 13567 [2018-11-07 18:14:10,653 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 130 GetRequests, 102 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2018-11-07 18:14:10,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2018-11-07 18:14:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 13426. [2018-11-07 18:14:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13426 states. [2018-11-07 18:14:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13426 states to 13426 states and 16781 transitions. [2018-11-07 18:14:10,909 INFO L78 Accepts]: Start accepts. Automaton has 13426 states and 16781 transitions. Word has length 121 [2018-11-07 18:14:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:14:10,909 INFO L480 AbstractCegarLoop]: Abstraction has 13426 states and 16781 transitions. [2018-11-07 18:14:10,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 18:14:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13426 states and 16781 transitions. [2018-11-07 18:14:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 18:14:10,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:14:10,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:10,912 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:14:10,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:14:10,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1634503072, now seen corresponding path program 1 times [2018-11-07 18:14:10,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:14:10,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:10,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:14:10,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:10,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:14:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:14:11,164 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:14:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 18:14:11,394 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:14:11,394 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:14:11,394 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-07 18:14:11,395 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [311], [313], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:14:11,405 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:14:11,405 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:14:11,481 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:14:11,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:14:11,717 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:14:11,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:14:11,722 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:14:12,050 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 81.82% of their original sizes. [2018-11-07 18:14:12,051 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:14:12,484 INFO L415 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2018-11-07 18:14:12,484 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:14:12,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:14:12,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-11-07 18:14:12,485 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:14:12,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 18:14:12,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 18:14:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-11-07 18:14:12,487 INFO L87 Difference]: Start difference. First operand 13426 states and 16781 transitions. Second operand 16 states. [2018-11-07 18:14:56,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:14:56,283 INFO L93 Difference]: Finished difference Result 27592 states and 34752 transitions. [2018-11-07 18:14:56,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 18:14:56,284 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2018-11-07 18:14:56,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:14:56,327 INFO L225 Difference]: With dead ends: 27592 [2018-11-07 18:14:56,327 INFO L226 Difference]: Without dead ends: 15796 [2018-11-07 18:14:56,351 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 166 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2018-11-07 18:14:56,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2018-11-07 18:14:56,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15653. [2018-11-07 18:14:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15653 states. [2018-11-07 18:14:56,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15653 states to 15653 states and 19145 transitions. [2018-11-07 18:14:56,651 INFO L78 Accepts]: Start accepts. Automaton has 15653 states and 19145 transitions. Word has length 157 [2018-11-07 18:14:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:14:56,652 INFO L480 AbstractCegarLoop]: Abstraction has 15653 states and 19145 transitions. [2018-11-07 18:14:56,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 18:14:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 15653 states and 19145 transitions. [2018-11-07 18:14:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-07 18:14:56,665 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:14:56,666 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 18:14:56,666 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:14:56,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:14:56,667 INFO L82 PathProgramCache]: Analyzing trace with hash -731630659, now seen corresponding path program 1 times [2018-11-07 18:14:56,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:14:56,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:56,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:14:56,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:14:56,668 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:14:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:14:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-11-07 18:14:57,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:14:57,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:14:57,152 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:14:57,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:14:57,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:14:57,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:14:57,154 INFO L87 Difference]: Start difference. First operand 15653 states and 19145 transitions. Second operand 4 states. [2018-11-07 18:15:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:02,371 INFO L93 Difference]: Finished difference Result 37668 states and 48273 transitions. [2018-11-07 18:15:02,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:15:02,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 393 [2018-11-07 18:15:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:02,446 INFO L225 Difference]: With dead ends: 37668 [2018-11-07 18:15:02,447 INFO L226 Difference]: Without dead ends: 24647 [2018-11-07 18:15:02,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 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 18:15:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24647 states. [2018-11-07 18:15:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24647 to 24647. [2018-11-07 18:15:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24647 states. [2018-11-07 18:15:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24647 states to 24647 states and 29890 transitions. [2018-11-07 18:15:03,731 INFO L78 Accepts]: Start accepts. Automaton has 24647 states and 29890 transitions. Word has length 393 [2018-11-07 18:15:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:03,732 INFO L480 AbstractCegarLoop]: Abstraction has 24647 states and 29890 transitions. [2018-11-07 18:15:03,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:15:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 24647 states and 29890 transitions. [2018-11-07 18:15:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2018-11-07 18:15:03,854 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:03,855 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2018-11-07 18:15:03,856 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:03,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:03,856 INFO L82 PathProgramCache]: Analyzing trace with hash 517635463, now seen corresponding path program 1 times [2018-11-07 18:15:03,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:03,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:03,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:03,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:03,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 406 proven. 216 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2018-11-07 18:15:05,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:15:05,045 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:15:05,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 781 with the following transitions: [2018-11-07 18:15:05,047 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [311], [313], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [692], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:15:05,061 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:15:05,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:15:05,687 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:15:05,687 INFO L272 AbstractInterpreter]: Visited 251 different actions 498 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 18:15:05,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:05,725 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:15:06,736 INFO L227 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 77.93% of their original sizes. [2018-11-07 18:15:06,736 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:15:08,102 INFO L415 sIntCurrentIteration]: We unified 779 AI predicates to 779 [2018-11-07 18:15:08,102 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:15:08,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:15:08,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-07 18:15:08,103 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:08,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 18:15:08,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 18:15:08,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:15:08,105 INFO L87 Difference]: Start difference. First operand 24647 states and 29890 transitions. Second operand 22 states. [2018-11-07 18:15:11,260 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:15:58,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:58,841 INFO L93 Difference]: Finished difference Result 47298 states and 57845 transitions. [2018-11-07 18:15:58,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 18:15:58,842 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 780 [2018-11-07 18:15:58,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:58,906 INFO L225 Difference]: With dead ends: 47298 [2018-11-07 18:15:58,906 INFO L226 Difference]: Without dead ends: 25283 [2018-11-07 18:15:58,948 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 795 GetRequests, 742 SyntacticMatches, 17 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2018-11-07 18:15:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25283 states. [2018-11-07 18:15:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25283 to 25278. [2018-11-07 18:15:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25278 states. [2018-11-07 18:15:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25278 states to 25278 states and 30559 transitions. [2018-11-07 18:15:59,356 INFO L78 Accepts]: Start accepts. Automaton has 25278 states and 30559 transitions. Word has length 780 [2018-11-07 18:15:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:59,356 INFO L480 AbstractCegarLoop]: Abstraction has 25278 states and 30559 transitions. [2018-11-07 18:15:59,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 18:15:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 25278 states and 30559 transitions. [2018-11-07 18:15:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2018-11-07 18:15:59,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:59,459 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-07 18:15:59,459 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:59,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:59,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2078191830, now seen corresponding path program 1 times [2018-11-07 18:15:59,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:59,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:59,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:59,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:59,461 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:16:00,409 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 18:16:00,892 WARN L179 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-07 18:16:01,188 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-11-07 18:16:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 242 proven. 501 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2018-11-07 18:16:03,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:16:03,193 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:16:03,194 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 873 with the following transitions: [2018-11-07 18:16:03,194 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [311], [313], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [692], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:16:03,200 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:16:03,200 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:16:03,253 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:16:04,006 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:16:04,006 INFO L272 AbstractInterpreter]: Visited 252 different actions 1003 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 18:16:04,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:04,044 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:16:05,088 INFO L227 lantSequenceWeakener]: Weakened 869 states. On average, predicates are now at 77.38% of their original sizes. [2018-11-07 18:16:05,088 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:16:05,615 INFO L415 sIntCurrentIteration]: We unified 871 AI predicates to 871 [2018-11-07 18:16:05,616 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:16:05,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:16:05,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2018-11-07 18:16:05,616 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:16:05,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 18:16:05,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 18:16:05,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:16:05,617 INFO L87 Difference]: Start difference. First operand 25278 states and 30559 transitions. Second operand 10 states. [2018-11-07 18:16:21,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:16:21,225 INFO L93 Difference]: Finished difference Result 49250 states and 59946 transitions. [2018-11-07 18:16:21,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 18:16:21,225 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 872 [2018-11-07 18:16:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:16:21,281 INFO L225 Difference]: With dead ends: 49250 [2018-11-07 18:16:21,282 INFO L226 Difference]: Without dead ends: 27235 [2018-11-07 18:16:21,313 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 879 GetRequests, 863 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-11-07 18:16:21,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27235 states. [2018-11-07 18:16:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27235 to 27218. [2018-11-07 18:16:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27218 states. [2018-11-07 18:16:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27218 states to 27218 states and 32584 transitions. [2018-11-07 18:16:21,756 INFO L78 Accepts]: Start accepts. Automaton has 27218 states and 32584 transitions. Word has length 872 [2018-11-07 18:16:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:16:21,757 INFO L480 AbstractCegarLoop]: Abstraction has 27218 states and 32584 transitions. [2018-11-07 18:16:21,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 18:16:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 27218 states and 32584 transitions. [2018-11-07 18:16:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-11-07 18:16:21,807 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:16:21,808 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-07 18:16:21,808 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:16:21,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:21,809 INFO L82 PathProgramCache]: Analyzing trace with hash 705812843, now seen corresponding path program 1 times [2018-11-07 18:16:21,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:16:21,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:21,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:16:21,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:21,810 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:16:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:16:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 396 proven. 686 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2018-11-07 18:16:23,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:16:23,432 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:16:23,432 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 890 with the following transitions: [2018-11-07 18:16:23,433 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [311], [313], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [692], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:16:23,436 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:16:23,436 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:16:23,525 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:16:26,905 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:16:26,905 INFO L272 AbstractInterpreter]: Visited 261 different actions 3389 times. Merged at 11 different actions 137 times. Widened at 1 different actions 8 times. Found 37 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 18:16:26,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:26,919 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:16:26,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:16:26,920 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 18:16:27,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:16:27,298 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:16:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:16:27,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-11-07 18:16:27,832 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 18:16:28,034 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 18:16:28,034 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:16:28,040 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:16:28,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:16:28 BoogieIcfgContainer [2018-11-07 18:16:28,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:16:28,041 INFO L168 Benchmark]: Toolchain (without parser) took 213482.41 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 18:16:28,042 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:16:28,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1230.61 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:28,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:28,045 INFO L168 Benchmark]: Boogie Preprocessor took 167.05 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:16:28,045 INFO L168 Benchmark]: RCFGBuilder took 5838.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 262.7 MB). Peak memory consumption was 262.7 MB. Max. memory is 7.1 GB. [2018-11-07 18:16:28,046 INFO L168 Benchmark]: TraceAbstraction took 206040.80 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -679.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 18:16:28,057 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1230.61 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 201.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.05 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5838.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 262.7 MB). Peak memory consumption was 262.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206040.80 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -679.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 890 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 205.9s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 178.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2281 SDtfs, 24593 SDslu, 1517 SDs, 0 SdLazy, 34339 SolverSat, 4880 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2032 GetRequests, 1867 SyntacticMatches, 28 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27218occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.6s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.9977718204861651 AbsIntWeakeningRatio, 0.0695742471443406 AbsIntAvgWeakeningVarsNumRemoved, 18.27570093457944 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 834 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 2876 NumberOfCodeBlocks, 2876 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2865 ConstructedInterpolants, 0 QuantifiedInterpolants, 8098207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 2536/3289 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown