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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:34:00,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:34:00,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:34:00,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:34:00,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:34:00,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:34:00,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:34:00,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:34:00,886 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:34:00,887 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:34:00,891 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:34:00,891 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:34:00,892 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:34:00,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:34:00,898 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:34:00,899 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:34:00,900 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:34:00,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:34:00,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:34:00,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:34:00,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:34:00,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:34:00,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:34:00,916 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:34:00,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:34:00,917 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:34:00,918 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:34:00,922 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:34:00,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:34:00,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:34:00,926 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:34:00,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:34:00,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:34:00,927 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:34:00,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:34:00,930 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:34:00,930 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:34:00,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:34:00,951 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:34:00,952 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:34:00,952 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:34:00,953 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:34:00,953 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:34:00,953 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:34:00,953 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:34:00,953 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:34:00,953 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:34:00,954 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:34:00,954 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:34:00,954 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:34:00,954 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:34:00,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:34:00,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:34:00,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:34:00,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:34:00,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:34:00,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:34:00,956 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:34:00,956 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:34:00,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:34:00,957 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:34:00,957 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:34:00,957 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:34:00,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:34:00,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:34:00,958 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:34:00,958 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:34:00,958 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:34:00,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:34:00,959 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:34:00,959 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:34:00,959 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:34:00,959 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:34:01,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:34:01,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:34:01,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:34:01,050 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:34:01,050 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:34:01,051 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-11-07 08:34:01,111 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f702f525/85f17680bc7e4704a9b021bf653a26d0/FLAG1096c14fe [2018-11-07 08:34:01,770 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:34:01,771 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-11-07 08:34:01,793 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f702f525/85f17680bc7e4704a9b021bf653a26d0/FLAG1096c14fe [2018-11-07 08:34:01,809 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f702f525/85f17680bc7e4704a9b021bf653a26d0 [2018-11-07 08:34:01,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:34:01,822 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:34:01,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:34:01,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:34:01,827 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:34:01,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:34:01" (1/1) ... [2018-11-07 08:34:01,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bcbd3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:01, skipping insertion in model container [2018-11-07 08:34:01,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:34:01" (1/1) ... [2018-11-07 08:34:01,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:34:01,909 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:34:02,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:34:02,561 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:34:02,829 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:34:02,851 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:34:02,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02 WrapperNode [2018-11-07 08:34:02,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:34:02,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:34:02,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:34:02,853 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:34:02,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:34:03,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:34:03,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:34:03,040 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:34:03,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (1/1) ... [2018-11-07 08:34:03,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:34:03,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:34:03,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:34:03,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:34:03,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (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 08:34:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:34:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:34:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:34:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:34:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:34:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:34:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:34:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:34:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:34:07,413 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:34:07,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:34:07 BoogieIcfgContainer [2018-11-07 08:34:07,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:34:07,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:34:07,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:34:07,419 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:34:07,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:34:01" (1/3) ... [2018-11-07 08:34:07,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5ba002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:34:07, skipping insertion in model container [2018-11-07 08:34:07,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:02" (2/3) ... [2018-11-07 08:34:07,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5ba002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:34:07, skipping insertion in model container [2018-11-07 08:34:07,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:34:07" (3/3) ... [2018-11-07 08:34:07,423 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label50_true-unreach-call.c [2018-11-07 08:34:07,434 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:34:07,446 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:34:07,465 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:34:07,500 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:34:07,501 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:34:07,501 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:34:07,501 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:34:07,501 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:34:07,501 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:34:07,502 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:34:07,502 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:34:07,532 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 08:34:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-07 08:34:07,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:34:07,542 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:34:07,545 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:34:07,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:07,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2098834559, now seen corresponding path program 1 times [2018-11-07 08:34:07,554 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:34:07,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:07,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:34:07,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:07,610 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:34:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:34:08,090 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 08:34:08,101 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 08:34:08,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:34:08,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:34:08,104 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:34:08,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:34:08,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:34:08,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:34:08,133 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 08:34:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:34:11,766 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-11-07 08:34:11,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:34:11,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-07 08:34:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:34:11,792 INFO L225 Difference]: With dead ends: 1001 [2018-11-07 08:34:11,792 INFO L226 Difference]: Without dead ends: 702 [2018-11-07 08:34:11,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:34:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-11-07 08:34:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-11-07 08:34:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-11-07 08:34:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-11-07 08:34:11,907 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 43 [2018-11-07 08:34:11,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:34:11,908 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-11-07 08:34:11,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:34:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-11-07 08:34:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 08:34:11,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:34:11,916 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:11,916 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:34:11,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:11,917 INFO L82 PathProgramCache]: Analyzing trace with hash 275725715, now seen corresponding path program 1 times [2018-11-07 08:34:11,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:34:11,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:11,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:34:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:11,919 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:34:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:34:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:34:12,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:34:12,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:34:12,285 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:34:12,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:34:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:34:12,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:34:12,288 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-11-07 08:34:17,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:34:17,785 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-11-07 08:34:17,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:34:17,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-11-07 08:34:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:34:17,809 INFO L225 Difference]: With dead ends: 2534 [2018-11-07 08:34:17,809 INFO L226 Difference]: Without dead ends: 1841 [2018-11-07 08:34:17,817 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 08:34:17,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-11-07 08:34:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-11-07 08:34:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-11-07 08:34:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-11-07 08:34:17,929 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 116 [2018-11-07 08:34:17,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:34:17,930 INFO L480 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-11-07 08:34:17,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:34:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-11-07 08:34:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-07 08:34:17,942 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:34:17,942 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:17,943 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:34:17,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:17,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1222906116, now seen corresponding path program 1 times [2018-11-07 08:34:17,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:34:17,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:17,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:34:17,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:17,946 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:34:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:34:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:34:18,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:34:18,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:34:18,212 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:34:18,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:34:18,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:34:18,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:34:18,214 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-11-07 08:34:20,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:34:20,693 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-11-07 08:34:20,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:34:20,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-11-07 08:34:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:34:20,720 INFO L225 Difference]: With dead ends: 4796 [2018-11-07 08:34:20,720 INFO L226 Difference]: Without dead ends: 2987 [2018-11-07 08:34:20,733 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:34:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-11-07 08:34:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-11-07 08:34:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-11-07 08:34:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-11-07 08:34:20,825 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 117 [2018-11-07 08:34:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:34:20,825 INFO L480 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-11-07 08:34:20,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:34:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-11-07 08:34:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 08:34:20,832 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:34:20,832 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:20,832 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:34:20,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1567634535, now seen corresponding path program 1 times [2018-11-07 08:34:20,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:34:20,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:20,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:34:20,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:20,835 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:34:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:34:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:34:21,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:34:21,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:34:21,087 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:34:21,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:34:21,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:34:21,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:34:21,089 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-11-07 08:34:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:34:24,640 INFO L93 Difference]: Finished difference Result 11406 states and 20946 transitions. [2018-11-07 08:34:24,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 08:34:24,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-11-07 08:34:24,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:34:24,739 INFO L225 Difference]: With dead ends: 11406 [2018-11-07 08:34:24,739 INFO L226 Difference]: Without dead ends: 8442 [2018-11-07 08:34:24,824 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:34:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2018-11-07 08:34:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7646. [2018-11-07 08:34:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7646 states. [2018-11-07 08:34:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7646 states to 7646 states and 11153 transitions. [2018-11-07 08:34:25,176 INFO L78 Accepts]: Start accepts. Automaton has 7646 states and 11153 transitions. Word has length 142 [2018-11-07 08:34:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:34:25,177 INFO L480 AbstractCegarLoop]: Abstraction has 7646 states and 11153 transitions. [2018-11-07 08:34:25,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:34:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 7646 states and 11153 transitions. [2018-11-07 08:34:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-07 08:34:25,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:34:25,187 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:34:25,188 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:34:25,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:25,188 INFO L82 PathProgramCache]: Analyzing trace with hash 961249486, now seen corresponding path program 1 times [2018-11-07 08:34:25,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:34:25,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:25,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:34:25,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:34:25,190 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:34:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:34:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:34:25,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:34:25,517 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:34:25,518 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-11-07 08:34:25,521 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:34:25,569 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:34:25,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:34:26,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:34:26,097 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 08:34:26,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:34:26,104 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:34:26,668 INFO L227 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 73.49% of their original sizes. [2018-11-07 08:34:26,669 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:34:26,870 INFO L415 sIntCurrentIteration]: We unified 189 AI predicates to 189 [2018-11-07 08:34:26,871 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:34:26,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:34:26,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 08:34:26,872 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:34:26,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:34:26,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:34:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:34:26,873 INFO L87 Difference]: Start difference. First operand 7646 states and 11153 transitions. Second operand 6 states. [2018-11-07 08:35:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:35:09,891 INFO L93 Difference]: Finished difference Result 15478 states and 22519 transitions. [2018-11-07 08:35:09,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:35:09,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2018-11-07 08:35:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:35:09,946 INFO L225 Difference]: With dead ends: 15478 [2018-11-07 08:35:09,946 INFO L226 Difference]: Without dead ends: 7838 [2018-11-07 08:35:09,981 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:35:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2018-11-07 08:35:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7836. [2018-11-07 08:35:10,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7836 states. [2018-11-07 08:35:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 11354 transitions. [2018-11-07 08:35:10,228 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 11354 transitions. Word has length 190 [2018-11-07 08:35:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:35:10,228 INFO L480 AbstractCegarLoop]: Abstraction has 7836 states and 11354 transitions. [2018-11-07 08:35:10,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:35:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 11354 transitions. [2018-11-07 08:35:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-11-07 08:35:10,238 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:35:10,239 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:35:10,239 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:35:10,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:35:10,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1177715268, now seen corresponding path program 1 times [2018-11-07 08:35:10,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:35:10,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:35:10,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:35:10,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:35:10,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:35:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:35:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:35:10,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:35:10,691 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:35:10,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-11-07 08:35:10,691 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:35:10,698 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:35:10,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:35:11,040 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:35:11,041 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 08:35:11,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:35:11,082 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:35:11,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:35:11,082 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 08:35:11,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:35:11,101 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:35:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:35:11,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:35:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:35:11,410 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:35:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:35:11,869 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:35:11,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 08:35:11,870 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:35:11,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 08:35:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 08:35:11,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:35:11,872 INFO L87 Difference]: Start difference. First operand 7836 states and 11354 transitions. Second operand 9 states. [2018-11-07 08:35:20,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:35:20,076 INFO L93 Difference]: Finished difference Result 21953 states and 42249 transitions. [2018-11-07 08:35:20,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 08:35:20,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2018-11-07 08:35:20,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:35:20,245 INFO L225 Difference]: With dead ends: 21953 [2018-11-07 08:35:20,245 INFO L226 Difference]: Without dead ends: 14313 [2018-11-07 08:35:20,431 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 08:35:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14313 states. [2018-11-07 08:35:21,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14313 to 14154. [2018-11-07 08:35:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14154 states. [2018-11-07 08:35:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14154 states to 14154 states and 24690 transitions. [2018-11-07 08:35:21,224 INFO L78 Accepts]: Start accepts. Automaton has 14154 states and 24690 transitions. Word has length 247 [2018-11-07 08:35:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:35:21,225 INFO L480 AbstractCegarLoop]: Abstraction has 14154 states and 24690 transitions. [2018-11-07 08:35:21,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 08:35:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 14154 states and 24690 transitions. [2018-11-07 08:35:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-07 08:35:21,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:35:21,239 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:35:21,240 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:35:21,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:35:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1757010189, now seen corresponding path program 1 times [2018-11-07 08:35:21,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:35:21,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:35:21,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:35:21,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:35:21,242 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:35:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:35:21,814 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 08:35:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 08:35:22,652 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:35:22,652 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:35:22,652 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-07 08:35:22,653 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:35:22,664 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:35:22,664 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:35:23,692 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:35:23,692 INFO L272 AbstractInterpreter]: Visited 136 different actions 402 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:35:23,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:35:23,728 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:35:23,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:35:23,728 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:35:24,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:35:24,067 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:35:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:35:24,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:35:25,237 WARN L179 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 20 [2018-11-07 08:35:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 73 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:35:25,758 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:35:25,950 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 08:35:26,120 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-11-07 08:35:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 73 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:35:27,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:35:27,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2018-11-07 08:35:27,220 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:35:27,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 08:35:27,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 08:35:27,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-11-07 08:35:27,222 INFO L87 Difference]: Start difference. First operand 14154 states and 24690 transitions. Second operand 15 states. [2018-11-07 08:35:28,496 WARN L179 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2018-11-07 08:35:30,871 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2018-11-07 08:35:31,894 WARN L179 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2018-11-07 08:35:32,538 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-11-07 08:35:33,195 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2018-11-07 08:35:34,059 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-07 08:35:35,375 WARN L179 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-11-07 08:35:37,711 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-11-07 08:35:38,954 WARN L179 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2018-11-07 08:35:41,532 WARN L179 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-11-07 08:35:44,680 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 08:35:47,229 WARN L179 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2018-11-07 08:35:48,997 WARN L179 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-11-07 08:35:52,017 WARN L179 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-07 08:35:56,312 WARN L179 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2018-11-07 08:36:00,979 WARN L179 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-11-07 08:36:02,388 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2018-11-07 08:36:03,920 WARN L179 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2018-11-07 08:36:05,695 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-11-07 08:36:20,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:36:20,048 INFO L93 Difference]: Finished difference Result 52684 states and 106194 transitions. [2018-11-07 08:36:20,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-11-07 08:36:20,049 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 265 [2018-11-07 08:36:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:36:20,419 INFO L225 Difference]: With dead ends: 52684 [2018-11-07 08:36:20,419 INFO L226 Difference]: Without dead ends: 38402 [2018-11-07 08:36:20,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9312 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=2748, Invalid=21432, Unknown=0, NotChecked=0, Total=24180 [2018-11-07 08:36:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38402 states. [2018-11-07 08:36:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38402 to 38073. [2018-11-07 08:36:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38073 states. [2018-11-07 08:36:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38073 states to 38073 states and 67486 transitions. [2018-11-07 08:36:22,934 INFO L78 Accepts]: Start accepts. Automaton has 38073 states and 67486 transitions. Word has length 265 [2018-11-07 08:36:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:36:22,935 INFO L480 AbstractCegarLoop]: Abstraction has 38073 states and 67486 transitions. [2018-11-07 08:36:22,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 08:36:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 38073 states and 67486 transitions. [2018-11-07 08:36:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-07 08:36:22,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:36:22,949 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:36:22,950 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:36:22,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:36:22,951 INFO L82 PathProgramCache]: Analyzing trace with hash -86645952, now seen corresponding path program 1 times [2018-11-07 08:36:22,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:36:22,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:22,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:36:22,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:22,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:36:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:36:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-07 08:36:23,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:36:23,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:36:23,354 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-07 08:36:23,355 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [574], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:36:23,359 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:36:23,360 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:36:23,815 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:36:23,816 INFO L272 AbstractInterpreter]: Visited 141 different actions 558 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:36:23,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:36:23,854 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:36:23,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:36:23,854 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:36:23,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:36:23,871 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:36:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:36:23,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:36:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:36:24,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:36:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:36:24,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:36:24,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-07 08:36:24,400 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:36:24,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 08:36:24,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 08:36:24,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 08:36:24,402 INFO L87 Difference]: Start difference. First operand 38073 states and 67486 transitions. Second operand 11 states. [2018-11-07 08:36:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:36:30,795 INFO L93 Difference]: Finished difference Result 94793 states and 195616 transitions. [2018-11-07 08:36:30,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:36:30,795 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 265 [2018-11-07 08:36:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:36:31,441 INFO L225 Difference]: With dead ends: 94793 [2018-11-07 08:36:31,442 INFO L226 Difference]: Without dead ends: 55192 [2018-11-07 08:36:31,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 532 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-11-07 08:36:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55192 states. [2018-11-07 08:36:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55192 to 53379. [2018-11-07 08:36:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53379 states. [2018-11-07 08:36:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53379 states to 53379 states and 88392 transitions. [2018-11-07 08:36:35,385 INFO L78 Accepts]: Start accepts. Automaton has 53379 states and 88392 transitions. Word has length 265 [2018-11-07 08:36:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:36:35,386 INFO L480 AbstractCegarLoop]: Abstraction has 53379 states and 88392 transitions. [2018-11-07 08:36:35,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 08:36:35,386 INFO L276 IsEmpty]: Start isEmpty. Operand 53379 states and 88392 transitions. [2018-11-07 08:36:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-11-07 08:36:35,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:36:35,397 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:36:35,397 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:36:35,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:36:35,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1430752676, now seen corresponding path program 1 times [2018-11-07 08:36:35,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:36:35,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:35,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:36:35,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:35,399 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:36:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:36:35,754 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-11-07 08:36:35,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:36:35,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:36:35,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:36:35,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:36:35,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:36:35,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:36:35,756 INFO L87 Difference]: Start difference. First operand 53379 states and 88392 transitions. Second operand 4 states. [2018-11-07 08:36:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:36:40,173 INFO L93 Difference]: Finished difference Result 129575 states and 237593 transitions. [2018-11-07 08:36:40,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:36:40,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 267 [2018-11-07 08:36:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:36:40,851 INFO L225 Difference]: With dead ends: 129575 [2018-11-07 08:36:40,851 INFO L226 Difference]: Without dead ends: 71589 [2018-11-07 08:36:42,457 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:36:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71589 states. [2018-11-07 08:36:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71589 to 71054. [2018-11-07 08:36:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71054 states. [2018-11-07 08:36:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71054 states to 71054 states and 115833 transitions. [2018-11-07 08:36:44,954 INFO L78 Accepts]: Start accepts. Automaton has 71054 states and 115833 transitions. Word has length 267 [2018-11-07 08:36:44,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:36:44,955 INFO L480 AbstractCegarLoop]: Abstraction has 71054 states and 115833 transitions. [2018-11-07 08:36:44,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:36:44,955 INFO L276 IsEmpty]: Start isEmpty. Operand 71054 states and 115833 transitions. [2018-11-07 08:36:44,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-07 08:36:44,965 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:36:44,965 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:36:44,965 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:36:44,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:36:44,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1468766341, now seen corresponding path program 1 times [2018-11-07 08:36:44,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:36:44,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:44,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:36:44,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:36:44,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:36:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:36:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 79 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:36:45,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:36:45,475 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:36:45,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-11-07 08:36:45,476 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:36:45,480 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:36:45,480 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:36:45,913 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:36:45,913 INFO L272 AbstractInterpreter]: Visited 141 different actions 418 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:36:45,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:36:45,948 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:36:45,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:36:45,949 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:36:45,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:36:45,966 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:36:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:36:46,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:36:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:36:46,842 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:36:47,151 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-07 08:36:47,259 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-07 08:36:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 73 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:36:48,614 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:36:48,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2018-11-07 08:36:48,615 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:36:48,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 08:36:48,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 08:36:48,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-07 08:36:48,616 INFO L87 Difference]: Start difference. First operand 71054 states and 115833 transitions. Second operand 16 states. [2018-11-07 08:37:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:37:03,095 INFO L93 Difference]: Finished difference Result 161779 states and 316010 transitions. [2018-11-07 08:37:03,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-07 08:37:03,095 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 270 [2018-11-07 08:37:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:37:04,385 INFO L225 Difference]: With dead ends: 161779 [2018-11-07 08:37:04,385 INFO L226 Difference]: Without dead ends: 90361 [2018-11-07 08:37:04,957 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 531 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1320 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=961, Invalid=3595, Unknown=0, NotChecked=0, Total=4556 [2018-11-07 08:37:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90361 states. [2018-11-07 08:37:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90361 to 84769. [2018-11-07 08:37:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84769 states. [2018-11-07 08:37:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84769 states to 84769 states and 144917 transitions. [2018-11-07 08:37:13,334 INFO L78 Accepts]: Start accepts. Automaton has 84769 states and 144917 transitions. Word has length 270 [2018-11-07 08:37:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:37:13,335 INFO L480 AbstractCegarLoop]: Abstraction has 84769 states and 144917 transitions. [2018-11-07 08:37:13,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 08:37:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 84769 states and 144917 transitions. [2018-11-07 08:37:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-07 08:37:13,346 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:37:13,347 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:37:13,347 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:37:13,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:37:13,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1661828858, now seen corresponding path program 1 times [2018-11-07 08:37:13,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:37:13,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:37:13,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:37:13,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:37:13,349 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:37:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:37:14,356 WARN L179 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-07 08:37:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:37:14,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:37:14,841 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:37:14,841 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-11-07 08:37:14,842 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:37:14,845 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:37:14,845 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:37:15,262 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:37:15,262 INFO L272 AbstractInterpreter]: Visited 157 different actions 468 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:37:15,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:37:15,267 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:37:15,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:37:15,267 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:37:15,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:37:15,276 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:37:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:37:15,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:37:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:37:15,650 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:37:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 73 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:37:16,372 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:37:16,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 26 [2018-11-07 08:37:16,373 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:37:16,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 08:37:16,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 08:37:16,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2018-11-07 08:37:16,374 INFO L87 Difference]: Start difference. First operand 84769 states and 144917 transitions. Second operand 21 states. [2018-11-07 08:37:19,535 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 29 [2018-11-07 08:37:20,506 WARN L179 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2018-11-07 08:37:26,988 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2018-11-07 08:37:36,198 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 Received shutdown request... [2018-11-07 08:37:38,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-11-07 08:37:38,424 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:37:38,429 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:37:38,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:37:38 BoogieIcfgContainer [2018-11-07 08:37:38,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:37:38,430 INFO L168 Benchmark]: Toolchain (without parser) took 216609.10 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 08:37:38,431 INFO L168 Benchmark]: CDTParser took 0.18 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 08:37:38,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1029.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:37:38,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 186.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:37:38,434 INFO L168 Benchmark]: Boogie Preprocessor took 125.55 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 08:37:38,434 INFO L168 Benchmark]: RCFGBuilder took 4249.10 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: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:37:38,435 INFO L168 Benchmark]: TraceAbstraction took 211013.44 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 08:37:38,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 1029.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 186.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -845.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.55 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 4249.10 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: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211013.44 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (84769states) and FLOYD_HOARE automaton (currently 114 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (18188 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 210.9s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 173.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2639 SDtfs, 28149 SDslu, 5537 SDs, 0 SdLazy, 56077 SolverSat, 8185 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 107.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3269 GetRequests, 2846 SyntacticMatches, 10 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16654 ImplicationChecksByTransitivity, 28.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84769occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.4s AbstIntTime, 6 AbstIntIterations, 1 AbstIntStrong, 0.9974921991588659 AbsIntWeakeningRatio, 0.14814814814814814 AbsIntAvgWeakeningVarsNumRemoved, 18.132275132275133 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 9272 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 3541 NumberOfCodeBlocks, 3541 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4853 ConstructedInterpolants, 7 QuantifiedInterpolants, 9911047 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2369 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 2111/2837 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown