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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:42:23,859 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:42:23,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:42:23,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:42:23,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:42:23,882 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:42:23,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:42:23,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:42:23,888 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:42:23,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:42:23,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:42:23,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:42:23,901 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:42:23,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:42:23,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:42:23,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:42:23,905 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:42:23,907 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:42:23,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:42:23,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:42:23,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:42:23,917 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:42:23,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:42:23,935 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:42:23,936 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:42:23,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:42:23,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:42:23,940 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:42:23,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:42:23,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:42:23,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:42:23,973 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:42:23,973 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:42:23,973 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:42:23,974 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:42:23,974 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:42:23,974 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:42:23,974 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:42:23,975 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:42:23,975 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:42:23,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:42:23,976 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:42:23,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:42:23,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:42:23,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:42:23,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:42:23,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:42:23,980 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:42:23,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:42:23,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:42:23,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:42:23,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:42:23,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:42:23,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:42:23,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:42:23,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:42:23,982 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:42:23,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:42:23,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:42:23,982 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:42:23,983 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:42:23,983 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:42:24,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:42:24,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:42:24,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:42:24,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:42:24,072 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:42:24,073 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-09-18 11:42:24,421 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1807e9c/a853bcca4bda44d8b38afe53fc5a5e63/FLAG0220cc9cd [2018-09-18 11:42:24,929 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:42:24,930 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-09-18 11:42:24,969 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1807e9c/a853bcca4bda44d8b38afe53fc5a5e63/FLAG0220cc9cd [2018-09-18 11:42:24,992 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1807e9c/a853bcca4bda44d8b38afe53fc5a5e63 [2018-09-18 11:42:25,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:42:25,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:42:25,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:42:25,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:42:25,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:42:25,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:42:24" (1/1) ... [2018-09-18 11:42:25,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:25, skipping insertion in model container [2018-09-18 11:42:25,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:42:24" (1/1) ... [2018-09-18 11:42:25,041 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:42:26,476 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:42:26,495 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:42:27,240 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:42:27,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27 WrapperNode [2018-09-18 11:42:27,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:42:27,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:42:27,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:42:27,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:42:27,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:27,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:27,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:42:27,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:42:27,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:42:27,939 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:42:28,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:28,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:28,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:28,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:28,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:29,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:29,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (1/1) ... [2018-09-18 11:42:29,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:42:29,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:42:29,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:42:29,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:42:29,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (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 [2018-09-18 11:42:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:42:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:42:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:42:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:42:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:42:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:42:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:42:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:42:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:42:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:42:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:42:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:42:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:42:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:42:39,718 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:42:39,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:42:39 BoogieIcfgContainer [2018-09-18 11:42:39,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:42:39,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:42:39,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:42:39,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:42:39,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:42:24" (1/3) ... [2018-09-18 11:42:39,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389fff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:42:39, skipping insertion in model container [2018-09-18 11:42:39,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:27" (2/3) ... [2018-09-18 11:42:39,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389fff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:42:39, skipping insertion in model container [2018-09-18 11:42:39,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:42:39" (3/3) ... [2018-09-18 11:42:39,728 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label38_true-unreach-call.c [2018-09-18 11:42:39,739 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:42:39,749 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:42:39,814 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:42:39,815 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:42:39,815 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:42:39,815 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:42:39,815 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:42:39,815 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:42:39,815 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:42:39,815 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:42:39,816 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:42:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:42:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-18 11:42:39,868 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:42:39,869 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:42:39,870 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:42:39,876 INFO L82 PathProgramCache]: Analyzing trace with hash 437838356, now seen corresponding path program 1 times [2018-09-18 11:42:39,879 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:42:39,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:39,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:39,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:39,932 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:42:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:40,435 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:42:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:42:40,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:42:40,576 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:42:40,576 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:42:40,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:42:40,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:42:40,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:42:40,604 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:42:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:42:51,903 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-09-18 11:42:51,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:42:51,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-09-18 11:42:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:42:51,944 INFO L225 Difference]: With dead ends: 3087 [2018-09-18 11:42:51,945 INFO L226 Difference]: Without dead ends: 1965 [2018-09-18 11:42:51,955 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:42:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-09-18 11:42:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-09-18 11:42:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-09-18 11:42:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-09-18 11:42:52,128 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 66 [2018-09-18 11:42:52,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:42:52,129 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-09-18 11:42:52,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:42:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-09-18 11:42:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-18 11:42:52,144 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:42:52,145 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:42:52,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:42:52,146 INFO L82 PathProgramCache]: Analyzing trace with hash 124498118, now seen corresponding path program 1 times [2018-09-18 11:42:52,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:42:52,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:52,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:52,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:52,148 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:42:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:52,552 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:42:52,552 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:42:52,552 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:42:52,552 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:42:52,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:42:52,555 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:42:52,555 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:42:52,555 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-09-18 11:43:05,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:05,058 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-09-18 11:43:05,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:43:05,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-09-18 11:43:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:05,168 INFO L225 Difference]: With dead ends: 5634 [2018-09-18 11:43:05,169 INFO L226 Difference]: Without dead ends: 3681 [2018-09-18 11:43:05,176 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:43:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-09-18 11:43:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-09-18 11:43:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-09-18 11:43:05,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-09-18 11:43:05,315 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 143 [2018-09-18 11:43:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:05,316 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-09-18 11:43:05,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:43:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-09-18 11:43:05,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-09-18 11:43:05,329 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:05,330 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:43:05,330 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:05,330 INFO L82 PathProgramCache]: Analyzing trace with hash -738024772, now seen corresponding path program 1 times [2018-09-18 11:43:05,330 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:05,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:05,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:05,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:05,332 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:05,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:05,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:43:05,750 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:05,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:43:05,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:43:05,751 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:43:05,752 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-09-18 11:43:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:17,109 INFO L93 Difference]: Finished difference Result 12385 states and 20601 transitions. [2018-09-18 11:43:17,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:43:17,110 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-09-18 11:43:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:17,156 INFO L225 Difference]: With dead ends: 12385 [2018-09-18 11:43:17,156 INFO L226 Difference]: Without dead ends: 8741 [2018-09-18 11:43:17,179 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:43:17,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2018-09-18 11:43:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8684. [2018-09-18 11:43:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8684 states. [2018-09-18 11:43:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12864 transitions. [2018-09-18 11:43:17,404 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12864 transitions. Word has length 162 [2018-09-18 11:43:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:17,405 INFO L480 AbstractCegarLoop]: Abstraction has 8684 states and 12864 transitions. [2018-09-18 11:43:17,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:43:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12864 transitions. [2018-09-18 11:43:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-18 11:43:17,410 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:17,410 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:43:17,410 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:17,410 INFO L82 PathProgramCache]: Analyzing trace with hash -645382492, now seen corresponding path program 1 times [2018-09-18 11:43:17,411 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:17,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:17,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:17,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:17,412 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:17,710 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:43:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:17,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:17,871 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:43:17,871 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:17,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:43:17,872 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:43:17,872 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:43:17,872 INFO L87 Difference]: Start difference. First operand 8684 states and 12864 transitions. Second operand 6 states. [2018-09-18 11:43:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:29,539 INFO L93 Difference]: Finished difference Result 22909 states and 34919 transitions. [2018-09-18 11:43:29,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:43:29,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-09-18 11:43:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:29,617 INFO L225 Difference]: With dead ends: 22909 [2018-09-18 11:43:29,617 INFO L226 Difference]: Without dead ends: 14231 [2018-09-18 11:43:29,652 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:43:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2018-09-18 11:43:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 14057. [2018-09-18 11:43:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14057 states. [2018-09-18 11:43:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14057 states to 14057 states and 19960 transitions. [2018-09-18 11:43:30,026 INFO L78 Accepts]: Start accepts. Automaton has 14057 states and 19960 transitions. Word has length 174 [2018-09-18 11:43:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:30,027 INFO L480 AbstractCegarLoop]: Abstraction has 14057 states and 19960 transitions. [2018-09-18 11:43:30,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:43:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 14057 states and 19960 transitions. [2018-09-18 11:43:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-09-18 11:43:30,038 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:30,038 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:30,039 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1546539748, now seen corresponding path program 1 times [2018-09-18 11:43:30,039 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:30,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:30,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:30,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:30,041 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 118 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:43:30,423 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:43:30,423 INFO L197 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 [2018-09-18 11:43:30,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:30,435 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:43:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:30,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:43:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-18 11:43:30,761 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:43:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 118 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:43:31,542 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:43:31,542 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-18 11:43:31,543 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:31,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:43:31,548 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:43:31,548 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:43:31,548 INFO L87 Difference]: Start difference. First operand 14057 states and 19960 transitions. Second operand 5 states. [2018-09-18 11:43:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:46,562 INFO L93 Difference]: Finished difference Result 41218 states and 63333 transitions. [2018-09-18 11:43:46,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:43:46,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 229 [2018-09-18 11:43:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:46,711 INFO L225 Difference]: With dead ends: 41218 [2018-09-18 11:43:46,712 INFO L226 Difference]: Without dead ends: 27167 [2018-09-18 11:43:46,775 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 456 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:43:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27167 states. [2018-09-18 11:43:47,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27167 to 26894. [2018-09-18 11:43:47,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26894 states. [2018-09-18 11:43:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26894 states to 26894 states and 37956 transitions. [2018-09-18 11:43:47,612 INFO L78 Accepts]: Start accepts. Automaton has 26894 states and 37956 transitions. Word has length 229 [2018-09-18 11:43:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:47,613 INFO L480 AbstractCegarLoop]: Abstraction has 26894 states and 37956 transitions. [2018-09-18 11:43:47,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:43:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 26894 states and 37956 transitions. [2018-09-18 11:43:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-09-18 11:43:47,627 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:47,627 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:47,627 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:47,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1030973685, now seen corresponding path program 1 times [2018-09-18 11:43:47,628 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:47,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:47,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:47,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:47,629 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:48,182 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:48,183 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:43:48,183 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:48,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:43:48,185 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:43:48,185 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:43:48,185 INFO L87 Difference]: Start difference. First operand 26894 states and 37956 transitions. Second operand 5 states. [2018-09-18 11:44:12,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:12,408 INFO L93 Difference]: Finished difference Result 63492 states and 90420 transitions. [2018-09-18 11:44:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:44:12,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2018-09-18 11:44:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:12,560 INFO L225 Difference]: With dead ends: 63492 [2018-09-18 11:44:12,560 INFO L226 Difference]: Without dead ends: 36604 [2018-09-18 11:44:12,629 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:44:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36604 states. [2018-09-18 11:44:13,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36604 to 35977. [2018-09-18 11:44:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35977 states. [2018-09-18 11:44:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35977 states to 35977 states and 49207 transitions. [2018-09-18 11:44:13,618 INFO L78 Accepts]: Start accepts. Automaton has 35977 states and 49207 transitions. Word has length 237 [2018-09-18 11:44:13,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:13,619 INFO L480 AbstractCegarLoop]: Abstraction has 35977 states and 49207 transitions. [2018-09-18 11:44:13,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:44:13,619 INFO L276 IsEmpty]: Start isEmpty. Operand 35977 states and 49207 transitions. [2018-09-18 11:44:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-09-18 11:44:13,633 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:13,633 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:13,633 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:13,634 INFO L82 PathProgramCache]: Analyzing trace with hash 50744144, now seen corresponding path program 1 times [2018-09-18 11:44:13,634 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:13,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:13,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:13,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:13,635 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:44:13,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:44:13,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:44:13,857 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:13,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:44:13,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:44:13,858 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:44:13,858 INFO L87 Difference]: Start difference. First operand 35977 states and 49207 transitions. Second operand 3 states. [2018-09-18 11:44:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:25,122 INFO L93 Difference]: Finished difference Result 71142 states and 97748 transitions. [2018-09-18 11:44:25,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:44:25,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2018-09-18 11:44:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:25,232 INFO L225 Difference]: With dead ends: 71142 [2018-09-18 11:44:25,233 INFO L226 Difference]: Without dead ends: 35978 [2018-09-18 11:44:25,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:44:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35978 states. [2018-09-18 11:44:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35978 to 35969. [2018-09-18 11:44:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35969 states. [2018-09-18 11:44:25,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35969 states to 35969 states and 45385 transitions. [2018-09-18 11:44:25,839 INFO L78 Accepts]: Start accepts. Automaton has 35969 states and 45385 transitions. Word has length 268 [2018-09-18 11:44:25,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:25,840 INFO L480 AbstractCegarLoop]: Abstraction has 35969 states and 45385 transitions. [2018-09-18 11:44:25,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:44:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35969 states and 45385 transitions. [2018-09-18 11:44:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-09-18 11:44:25,866 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:25,866 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:25,867 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:25,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1411680054, now seen corresponding path program 1 times [2018-09-18 11:44:25,867 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:25,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:25,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:25,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:25,869 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:26,170 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:44:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:44:26,746 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:44:26,746 INFO L197 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 [2018-09-18 11:44:26,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:26,755 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:44:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:26,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:44:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 225 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:27,015 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:44:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 225 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:27,229 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:44:27,229 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:44:27,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:27,245 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:44:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:27,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:44:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:44:27,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:44:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:44:28,133 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 11:44:28,134 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5, 5] total 12 [2018-09-18 11:44:28,134 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:28,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:44:28,134 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:44:28,135 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:44:28,135 INFO L87 Difference]: Start difference. First operand 35969 states and 45385 transitions. Second operand 5 states. [2018-09-18 11:44:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:37,141 INFO L93 Difference]: Finished difference Result 75930 states and 96950 transitions. [2018-09-18 11:44:37,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:44:37,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 293 [2018-09-18 11:44:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:37,228 INFO L225 Difference]: With dead ends: 75930 [2018-09-18 11:44:37,228 INFO L226 Difference]: Without dead ends: 40774 [2018-09-18 11:44:37,278 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1159 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:44:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40774 states. [2018-09-18 11:44:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40774 to 38490. [2018-09-18 11:44:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38490 states. [2018-09-18 11:44:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38490 states to 38490 states and 47055 transitions. [2018-09-18 11:44:37,834 INFO L78 Accepts]: Start accepts. Automaton has 38490 states and 47055 transitions. Word has length 293 [2018-09-18 11:44:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:37,835 INFO L480 AbstractCegarLoop]: Abstraction has 38490 states and 47055 transitions. [2018-09-18 11:44:37,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:44:37,835 INFO L276 IsEmpty]: Start isEmpty. Operand 38490 states and 47055 transitions. [2018-09-18 11:44:37,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-18 11:44:37,851 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:37,852 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:37,852 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:37,852 INFO L82 PathProgramCache]: Analyzing trace with hash -693394209, now seen corresponding path program 1 times [2018-09-18 11:44:37,853 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:37,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:37,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:37,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:37,854 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 150 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:38,547 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:44:38,547 INFO L197 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 [2018-09-18 11:44:38,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:38,555 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:44:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:38,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:44:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-18 11:44:38,979 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:44:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 118 proven. 89 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:44:39,763 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:44:39,763 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 5] total 18 [2018-09-18 11:44:39,764 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:39,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:44:39,764 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:44:39,765 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:44:39,765 INFO L87 Difference]: Start difference. First operand 38490 states and 47055 transitions. Second operand 5 states. [2018-09-18 11:44:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:57,273 INFO L93 Difference]: Finished difference Result 80940 states and 100335 transitions. [2018-09-18 11:44:57,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:44:57,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2018-09-18 11:44:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:57,372 INFO L225 Difference]: With dead ends: 80940 [2018-09-18 11:44:57,372 INFO L226 Difference]: Without dead ends: 42456 [2018-09-18 11:44:57,443 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 657 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2018-09-18 11:44:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42456 states. [2018-09-18 11:44:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42456 to 39943. [2018-09-18 11:44:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39943 states. [2018-09-18 11:44:58,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39943 states to 39943 states and 48803 transitions. [2018-09-18 11:44:58,108 INFO L78 Accepts]: Start accepts. Automaton has 39943 states and 48803 transitions. Word has length 331 [2018-09-18 11:44:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:58,115 INFO L480 AbstractCegarLoop]: Abstraction has 39943 states and 48803 transitions. [2018-09-18 11:44:58,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:44:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 39943 states and 48803 transitions. [2018-09-18 11:44:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-18 11:44:58,129 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:58,130 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:58,130 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:58,130 INFO L82 PathProgramCache]: Analyzing trace with hash -741287209, now seen corresponding path program 1 times [2018-09-18 11:44:58,130 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:58,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:58,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:58,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:58,132 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:58,683 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:44:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 157 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:59,793 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:44:59,793 INFO L197 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 [2018-09-18 11:44:59,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:59,803 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:44:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:59,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:45:00,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:00,977 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-18 11:45:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:45:01,520 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:45:01,521 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 5] total 20 [2018-09-18 11:45:01,521 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:01,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:45:01,521 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:45:01,522 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-09-18 11:45:01,522 INFO L87 Difference]: Start difference. First operand 39943 states and 48803 transitions. Second operand 5 states. [2018-09-18 11:45:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:14,339 INFO L93 Difference]: Finished difference Result 104579 states and 132435 transitions. [2018-09-18 11:45:14,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:45:14,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 338 [2018-09-18 11:45:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:14,473 INFO L225 Difference]: With dead ends: 104579 [2018-09-18 11:45:14,473 INFO L226 Difference]: Without dead ends: 58816 [2018-09-18 11:45:14,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 672 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:45:14,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58816 states. [2018-09-18 11:45:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58816 to 58582. [2018-09-18 11:45:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58582 states. [2018-09-18 11:45:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58582 states to 58582 states and 72102 transitions. [2018-09-18 11:45:15,306 INFO L78 Accepts]: Start accepts. Automaton has 58582 states and 72102 transitions. Word has length 338 [2018-09-18 11:45:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:15,307 INFO L480 AbstractCegarLoop]: Abstraction has 58582 states and 72102 transitions. [2018-09-18 11:45:15,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:45:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 58582 states and 72102 transitions. [2018-09-18 11:45:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2018-09-18 11:45:15,320 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:15,320 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:15,320 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:15,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1353108663, now seen corresponding path program 1 times [2018-09-18 11:45:15,321 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:15,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:15,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:15,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:15,322 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:15,655 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:45:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 113 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:15,967 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:15,967 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:15,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:15,974 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:16,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-18 11:45:16,186 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-18 11:45:16,337 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:45:16,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-18 11:45:16,337 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:16,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:45:16,338 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:45:16,338 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:45:16,338 INFO L87 Difference]: Start difference. First operand 58582 states and 72102 transitions. Second operand 3 states. [2018-09-18 11:45:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:22,550 INFO L93 Difference]: Finished difference Result 117161 states and 144280 transitions. [2018-09-18 11:45:22,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:45:22,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 391 [2018-09-18 11:45:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:22,706 INFO L225 Difference]: With dead ends: 117161 [2018-09-18 11:45:22,706 INFO L226 Difference]: Without dead ends: 59389 [2018-09-18 11:45:22,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 782 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:45:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59389 states. [2018-09-18 11:45:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59389 to 57762. [2018-09-18 11:45:23,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57762 states. [2018-09-18 11:45:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57762 states to 57762 states and 66640 transitions. [2018-09-18 11:45:23,730 INFO L78 Accepts]: Start accepts. Automaton has 57762 states and 66640 transitions. Word has length 391 [2018-09-18 11:45:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:23,731 INFO L480 AbstractCegarLoop]: Abstraction has 57762 states and 66640 transitions. [2018-09-18 11:45:23,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:45:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 57762 states and 66640 transitions. [2018-09-18 11:45:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2018-09-18 11:45:23,781 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:23,782 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:23,782 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:23,783 INFO L82 PathProgramCache]: Analyzing trace with hash -231842266, now seen corresponding path program 1 times [2018-09-18 11:45:23,783 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:23,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:23,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:23,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:23,784 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 331 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-18 11:45:24,260 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:24,260 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:24,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:24,268 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:24,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 533 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-18 11:45:24,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 331 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-18 11:45:25,469 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:25,469 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:45:25,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:25,487 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:25,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 533 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-18 11:45:26,061 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 331 proven. 155 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-18 11:45:26,329 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:45:26,330 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:45:26,330 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:45:26,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:45:26,331 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:45:26,332 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:45:26,332 INFO L87 Difference]: Start difference. First operand 57762 states and 66640 transitions. Second operand 9 states. [2018-09-18 11:45:50,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:50,023 INFO L93 Difference]: Finished difference Result 157419 states and 195378 transitions. [2018-09-18 11:45:50,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-18 11:45:50,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 601 [2018-09-18 11:45:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:50,438 INFO L225 Difference]: With dead ends: 157419 [2018-09-18 11:45:50,438 INFO L226 Difference]: Without dead ends: 97999 [2018-09-18 11:45:50,614 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2438 GetRequests, 2408 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2018-09-18 11:45:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97999 states. [2018-09-18 11:45:52,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97999 to 96941. [2018-09-18 11:45:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96941 states. [2018-09-18 11:45:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96941 states to 96941 states and 117089 transitions. [2018-09-18 11:45:52,490 INFO L78 Accepts]: Start accepts. Automaton has 96941 states and 117089 transitions. Word has length 601 [2018-09-18 11:45:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:52,491 INFO L480 AbstractCegarLoop]: Abstraction has 96941 states and 117089 transitions. [2018-09-18 11:45:52,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:45:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 96941 states and 117089 transitions. [2018-09-18 11:45:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2018-09-18 11:45:52,550 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:52,550 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:52,551 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:52,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1624808901, now seen corresponding path program 1 times [2018-09-18 11:45:52,551 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:52,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:52,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:52,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:52,552 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 485 proven. 60 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-18 11:45:55,273 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:55,274 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:55,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:55,282 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:55,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 520 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-09-18 11:45:56,074 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 251 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:45:57,064 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:57,064 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:45:57,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:57,080 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:57,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 520 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-09-18 11:45:58,209 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 251 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:45:59,513 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:45:59,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7, 8, 7, 8] total 25 [2018-09-18 11:45:59,514 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:45:59,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:45:59,516 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:45:59,516 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:45:59,517 INFO L87 Difference]: Start difference. First operand 96941 states and 117089 transitions. Second operand 20 states. [2018-09-18 11:46:00,035 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2018-09-18 11:46:07,349 WARN L178 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 22 Received shutdown request... [2018-09-18 11:46:17,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-09-18 11:46:17,500 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:46:17,505 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:46:17,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:46:17 BoogieIcfgContainer [2018-09-18 11:46:17,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:46:17,506 INFO L168 Benchmark]: Toolchain (without parser) took 232501.30 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -588.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,508 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-18 11:46:17,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2610.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 315.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,510 INFO L168 Benchmark]: Boogie Preprocessor took 1229.37 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,511 INFO L168 Benchmark]: RCFGBuilder took 10551.61 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 3.0 MB). Peak memory consumption was 747.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,512 INFO L168 Benchmark]: TraceAbstraction took 217785.41 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.0 GB in the end (delta: 367.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:46:17,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2610.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 315.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1229.37 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10551.61 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 153.6 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 3.0 MB). Peak memory consumption was 747.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217785.41 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.0 GB in the end (delta: 367.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (96941states) and FLOYD_HOARE automaton (currently 66 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (11327 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 217.7s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 186.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7630 SDtfs, 51070 SDslu, 5866 SDs, 0 SdLazy, 81823 SolverSat, 16117 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 153.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8928 GetRequests, 8689 SyntacticMatches, 35 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2792 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96941occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 8893 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 8191 NumberOfCodeBlocks, 8191 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 12489 ConstructedInterpolants, 222 QuantifiedInterpolants, 22500670 SizeOfPredicates, 16 NumberOfNonLiveVariables, 6858 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 33 InterpolantComputations, 12 PerfectInterpolantSequences, 10010/11985 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-46-17-531.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-46-17-531.csv Completed graceful shutdown