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_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:32:23,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:32:23,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:32:23,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:32:23,955 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:32:23,956 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:32:23,958 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:32:23,961 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:32:23,962 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:32:23,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:32:23,964 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:32:23,965 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:32:23,965 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:32:23,966 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:32:23,967 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:32:23,968 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:32:23,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:32:23,971 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:32:23,973 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:32:23,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:32:23,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:32:23,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:32:23,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:32:23,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:32:23,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:32:23,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:32:24,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:32:24,001 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 [2018-09-14 17:32:24,021 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:32:24,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:32:24,023 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:32:24,023 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:32:24,024 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:32:24,024 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:32:24,024 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:32:24,024 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:32:24,024 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:32:24,025 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:32:24,025 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:32:24,025 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:32:24,026 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:32:24,026 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:32:24,026 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:32:24,026 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:32:24,027 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:32:24,027 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:32:24,027 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:32:24,028 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:32:24,028 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:32:24,028 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:32:24,028 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:32:24,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:32:24,029 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:32:24,029 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:32:24,029 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:32:24,029 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:32:24,029 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:32:24,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:32:24,030 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:32:24,030 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:32:24,030 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:32:24,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:32:24,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:32:24,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:32:24,101 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:32:24,101 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:32:24,102 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-14 17:32:24,440 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7933f2927/87eb298b0cc84a31bbda2a4172356345/FLAG00d4a686c [2018-09-14 17:32:24,957 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:32:24,958 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-14 17:32:24,996 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7933f2927/87eb298b0cc84a31bbda2a4172356345/FLAG00d4a686c [2018-09-14 17:32:25,017 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7933f2927/87eb298b0cc84a31bbda2a4172356345 [2018-09-14 17:32:25,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:32:25,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:32:25,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:32:25,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:32:25,045 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:32:25,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:32:25" (1/1) ... [2018-09-14 17:32:25,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5df79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:25, skipping insertion in model container [2018-09-14 17:32:25,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:32:25" (1/1) ... [2018-09-14 17:32:25,063 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:32:26,468 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:32:26,489 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:32:27,256 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:32:27,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27 WrapperNode [2018-09-14 17:32:27,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:32:27,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:32:27,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:32:27,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:32:27,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:27,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:27,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:32:27,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:32:27,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:32:27,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:32:28,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:28,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:28,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:28,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:28,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:29,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:29,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (1/1) ... [2018-09-14 17:32:29,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:32:29,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:32:29,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:32:29,135 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:32:29,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (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 [2018-09-14 17:32:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:32:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:32:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:32:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:32:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:32:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:32:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:32:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:32:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:32:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:32:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:32:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:32:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:32:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:32:39,446 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:32:39,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:32:39 BoogieIcfgContainer [2018-09-14 17:32:39,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:32:39,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:32:39,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:32:39,451 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:32:39,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:32:25" (1/3) ... [2018-09-14 17:32:39,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:32:39, skipping insertion in model container [2018-09-14 17:32:39,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:32:27" (2/3) ... [2018-09-14 17:32:39,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:32:39, skipping insertion in model container [2018-09-14 17:32:39,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:32:39" (3/3) ... [2018-09-14 17:32:39,454 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label34_true-unreach-call.c [2018-09-14 17:32:39,464 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:32:39,478 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:32:39,555 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:32:39,556 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:32:39,556 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:32:39,556 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:32:39,556 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:32:39,556 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:32:39,557 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:32:39,557 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:32:39,557 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:32:39,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:32:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-14 17:32:39,620 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:39,621 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] [2018-09-14 17:32:39,622 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:39,627 INFO L82 PathProgramCache]: Analyzing trace with hash 784010707, now seen corresponding path program 1 times [2018-09-14 17:32:39,630 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:39,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:39,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:39,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:39,683 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:40,119 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:32:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:40,240 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:40,240 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:32:40,241 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:40,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:32:40,263 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:32:40,263 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:32:40,267 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-14 17:32:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:32:50,630 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-09-14 17:32:50,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:32:50,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-09-14 17:32:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:32:50,668 INFO L225 Difference]: With dead ends: 3093 [2018-09-14 17:32:50,668 INFO L226 Difference]: Without dead ends: 1971 [2018-09-14 17:32:50,680 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:32:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-09-14 17:32:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-09-14 17:32:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-09-14 17:32:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-09-14 17:32:50,877 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 63 [2018-09-14 17:32:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:32:50,878 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-09-14 17:32:50,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:32:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-09-14 17:32:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-14 17:32:50,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:50,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:32:50,892 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:50,893 INFO L82 PathProgramCache]: Analyzing trace with hash -666764916, now seen corresponding path program 1 times [2018-09-14 17:32:50,893 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:50,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:50,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:50,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:50,896 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:51,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:51,336 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:32:51,336 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:51,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:32:51,338 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:32:51,338 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:32:51,339 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-09-14 17:33:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:05,138 INFO L93 Difference]: Finished difference Result 5627 states and 10356 transitions. [2018-09-14 17:33:05,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:33:05,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-09-14 17:33:05,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:05,263 INFO L225 Difference]: With dead ends: 5627 [2018-09-14 17:33:05,264 INFO L226 Difference]: Without dead ends: 3676 [2018-09-14 17:33:05,271 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 [2018-09-14 17:33:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2018-09-14 17:33:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3643. [2018-09-14 17:33:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2018-09-14 17:33:05,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5987 transitions. [2018-09-14 17:33:05,387 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5987 transitions. Word has length 146 [2018-09-14 17:33:05,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:05,388 INFO L480 AbstractCegarLoop]: Abstraction has 3643 states and 5987 transitions. [2018-09-14 17:33:05,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:05,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5987 transitions. [2018-09-14 17:33:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-09-14 17:33:05,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:05,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:05,395 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:05,395 INFO L82 PathProgramCache]: Analyzing trace with hash -646191812, now seen corresponding path program 1 times [2018-09-14 17:33:05,395 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:05,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:05,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:05,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:05,397 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:05,623 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:05,624 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:33:05,624 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:05,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:33:05,625 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:33:05,625 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:33:05,626 INFO L87 Difference]: Start difference. First operand 3643 states and 5987 transitions. Second operand 5 states. [2018-09-14 17:33:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:21,741 INFO L93 Difference]: Finished difference Result 10957 states and 18516 transitions. [2018-09-14 17:33:21,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:33:21,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2018-09-14 17:33:21,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:21,792 INFO L225 Difference]: With dead ends: 10957 [2018-09-14 17:33:21,792 INFO L226 Difference]: Without dead ends: 7320 [2018-09-14 17:33:21,804 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:33:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2018-09-14 17:33:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7131. [2018-09-14 17:33:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7131 states. [2018-09-14 17:33:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7131 states to 7131 states and 10923 transitions. [2018-09-14 17:33:21,991 INFO L78 Accepts]: Start accepts. Automaton has 7131 states and 10923 transitions. Word has length 162 [2018-09-14 17:33:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:21,992 INFO L480 AbstractCegarLoop]: Abstraction has 7131 states and 10923 transitions. [2018-09-14 17:33:21,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:33:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 7131 states and 10923 transitions. [2018-09-14 17:33:21,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-14 17:33:21,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:21,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:21,999 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:21,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1378098232, now seen corresponding path program 1 times [2018-09-14 17:33:21,999 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:22,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:22,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:22,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:22,000 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:22,320 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:33:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:22,463 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:22,463 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:33:22,463 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:22,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:33:22,464 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:33:22,464 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:33:22,464 INFO L87 Difference]: Start difference. First operand 7131 states and 10923 transitions. Second operand 6 states. [2018-09-14 17:33:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:33,927 INFO L93 Difference]: Finished difference Result 19766 states and 31245 transitions. [2018-09-14 17:33:33,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:33:33,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-09-14 17:33:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:34,009 INFO L225 Difference]: With dead ends: 19766 [2018-09-14 17:33:34,009 INFO L226 Difference]: Without dead ends: 12641 [2018-09-14 17:33:34,051 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 [2018-09-14 17:33:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12641 states. [2018-09-14 17:33:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12641 to 12439. [2018-09-14 17:33:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12439 states. [2018-09-14 17:33:34,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12439 states to 12439 states and 18019 transitions. [2018-09-14 17:33:34,364 INFO L78 Accepts]: Start accepts. Automaton has 12439 states and 18019 transitions. Word has length 199 [2018-09-14 17:33:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:34,364 INFO L480 AbstractCegarLoop]: Abstraction has 12439 states and 18019 transitions. [2018-09-14 17:33:34,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 12439 states and 18019 transitions. [2018-09-14 17:33:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-14 17:33:34,374 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:34,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:34,374 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:34,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1937080759, now seen corresponding path program 1 times [2018-09-14 17:33:34,375 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:34,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:34,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:34,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:34,376 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:34,754 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:33:34,754 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:33:34,754 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:34,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:33:34,755 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:33:34,755 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:33:34,755 INFO L87 Difference]: Start difference. First operand 12439 states and 18019 transitions. Second operand 6 states. [2018-09-14 17:33:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:57,943 INFO L93 Difference]: Finished difference Result 42949 states and 69054 transitions. [2018-09-14 17:33:57,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 17:33:57,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-09-14 17:33:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:58,132 INFO L225 Difference]: With dead ends: 42949 [2018-09-14 17:33:58,132 INFO L226 Difference]: Without dead ends: 30516 [2018-09-14 17:33:58,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:33:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30516 states. [2018-09-14 17:33:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30516 to 30278. [2018-09-14 17:33:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30278 states. [2018-09-14 17:33:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30278 states to 30278 states and 43651 transitions. [2018-09-14 17:33:59,047 INFO L78 Accepts]: Start accepts. Automaton has 30278 states and 43651 transitions. Word has length 221 [2018-09-14 17:33:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:59,048 INFO L480 AbstractCegarLoop]: Abstraction has 30278 states and 43651 transitions. [2018-09-14 17:33:59,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:33:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 30278 states and 43651 transitions. [2018-09-14 17:33:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-09-14 17:33:59,064 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:59,065 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:33:59,065 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:59,065 INFO L82 PathProgramCache]: Analyzing trace with hash 830569225, now seen corresponding path program 1 times [2018-09-14 17:33:59,065 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:59,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:59,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:59,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:59,067 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:59,498 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:59,498 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 [2018-09-14 17:33:59,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:59,507 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:59,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-09-14 17:33:59,893 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-14 17:34:00,647 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:34:00,647 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 8 [2018-09-14 17:34:00,647 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:00,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:34:00,648 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:34:00,649 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:34:00,649 INFO L87 Difference]: Start difference. First operand 30278 states and 43651 transitions. Second operand 3 states. [2018-09-14 17:34:11,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:11,085 INFO L93 Difference]: Finished difference Result 64609 states and 97159 transitions. [2018-09-14 17:34:11,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:34:11,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2018-09-14 17:34:11,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:11,294 INFO L225 Difference]: With dead ends: 64609 [2018-09-14 17:34:11,294 INFO L226 Difference]: Without dead ends: 40053 [2018-09-14 17:34:11,383 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:34:11,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40053 states. [2018-09-14 17:34:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40053 to 40053. [2018-09-14 17:34:12,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40053 states. [2018-09-14 17:34:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40053 states to 40053 states and 56850 transitions. [2018-09-14 17:34:12,990 INFO L78 Accepts]: Start accepts. Automaton has 40053 states and 56850 transitions. Word has length 267 [2018-09-14 17:34:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:12,990 INFO L480 AbstractCegarLoop]: Abstraction has 40053 states and 56850 transitions. [2018-09-14 17:34:12,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:34:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 40053 states and 56850 transitions. [2018-09-14 17:34:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-09-14 17:34:13,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:13,004 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:34:13,004 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:13,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1537806897, now seen corresponding path program 1 times [2018-09-14 17:34:13,006 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:13,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:13,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:13,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:13,007 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 112 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:34:13,369 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:13,370 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 [2018-09-14 17:34:13,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:13,386 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:13,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-14 17:34:13,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 112 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:34:14,310 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:34:14,310 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-14 17:34:14,311 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:14,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:34:14,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:34:14,312 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:34:14,312 INFO L87 Difference]: Start difference. First operand 40053 states and 56850 transitions. Second operand 5 states. [2018-09-14 17:34:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:26,743 INFO L93 Difference]: Finished difference Result 97021 states and 148152 transitions. [2018-09-14 17:34:26,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:34:26,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2018-09-14 17:34:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:26,981 INFO L225 Difference]: With dead ends: 97021 [2018-09-14 17:34:26,981 INFO L226 Difference]: Without dead ends: 56974 [2018-09-14 17:34:27,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 531 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:34:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56974 states. [2018-09-14 17:34:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56974 to 56558. [2018-09-14 17:34:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56558 states. [2018-09-14 17:34:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56558 states to 56558 states and 82321 transitions. [2018-09-14 17:34:28,383 INFO L78 Accepts]: Start accepts. Automaton has 56558 states and 82321 transitions. Word has length 268 [2018-09-14 17:34:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:28,383 INFO L480 AbstractCegarLoop]: Abstraction has 56558 states and 82321 transitions. [2018-09-14 17:34:28,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 56558 states and 82321 transitions. [2018-09-14 17:34:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-09-14 17:34:28,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:28,399 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:34:28,399 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1866463359, now seen corresponding path program 1 times [2018-09-14 17:34:28,400 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:28,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:28,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:28,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:28,401 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-14 17:34:28,616 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:34:28,616 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:34:28,616 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:28,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:34:28,617 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:34:28,617 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:34:28,617 INFO L87 Difference]: Start difference. First operand 56558 states and 82321 transitions. Second operand 3 states. [2018-09-14 17:34:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:36,463 INFO L93 Difference]: Finished difference Result 155369 states and 243913 transitions. [2018-09-14 17:34:36,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:34:36,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2018-09-14 17:34:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:36,895 INFO L225 Difference]: With dead ends: 155369 [2018-09-14 17:34:36,895 INFO L226 Difference]: Without dead ends: 98817 [2018-09-14 17:34:37,095 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 [2018-09-14 17:34:37,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98817 states. [2018-09-14 17:34:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98817 to 98805. [2018-09-14 17:34:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98805 states. [2018-09-14 17:34:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98805 states to 98805 states and 139545 transitions. [2018-09-14 17:34:39,790 INFO L78 Accepts]: Start accepts. Automaton has 98805 states and 139545 transitions. Word has length 274 [2018-09-14 17:34:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:39,791 INFO L480 AbstractCegarLoop]: Abstraction has 98805 states and 139545 transitions. [2018-09-14 17:34:39,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:34:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 98805 states and 139545 transitions. [2018-09-14 17:34:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-09-14 17:34:39,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:39,829 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 17:34:39,830 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:39,830 INFO L82 PathProgramCache]: Analyzing trace with hash -25256842, now seen corresponding path program 1 times [2018-09-14 17:34:39,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:39,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:39,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:39,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:39,831 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:40,141 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:34:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 166 proven. 176 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-14 17:34:40,253 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:40,253 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:34:40,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:40,261 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:40,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-09-14 17:34:40,477 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-09-14 17:34:40,832 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:34:40,832 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-14 17:34:40,832 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:40,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:34:40,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:34:40,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:34:40,834 INFO L87 Difference]: Start difference. First operand 98805 states and 139545 transitions. Second operand 3 states. [2018-09-14 17:34:49,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:49,153 INFO L93 Difference]: Finished difference Result 208109 states and 296047 transitions. [2018-09-14 17:34:49,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:34:49,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2018-09-14 17:34:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:49,562 INFO L225 Difference]: With dead ends: 208109 [2018-09-14 17:34:49,562 INFO L226 Difference]: Without dead ends: 109310 [2018-09-14 17:34:49,803 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 668 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:34:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109310 states. [2018-09-14 17:34:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109310 to 106894. [2018-09-14 17:34:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106894 states. [2018-09-14 17:34:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106894 states to 106894 states and 141499 transitions. [2018-09-14 17:34:51,396 INFO L78 Accepts]: Start accepts. Automaton has 106894 states and 141499 transitions. Word has length 334 [2018-09-14 17:34:51,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:51,397 INFO L480 AbstractCegarLoop]: Abstraction has 106894 states and 141499 transitions. [2018-09-14 17:34:51,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:34:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 106894 states and 141499 transitions. [2018-09-14 17:34:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2018-09-14 17:34:51,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:51,457 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:34:51,457 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:51,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1211482818, now seen corresponding path program 1 times [2018-09-14 17:34:51,458 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:51,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:51,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:51,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:51,459 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:53,380 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:53,380 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 [2018-09-14 17:34:53,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:53,387 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:53,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:54,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:54,568 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:54,568 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:34:54,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:54,586 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:54,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:55,008 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:34:55,346 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:34:55,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-14 17:34:55,346 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:34:55,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:34:55,347 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:34:55,347 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:34:55,348 INFO L87 Difference]: Start difference. First operand 106894 states and 141499 transitions. Second operand 9 states. [2018-09-14 17:35:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:09,001 INFO L93 Difference]: Finished difference Result 198135 states and 276935 transitions. [2018-09-14 17:35:09,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-14 17:35:09,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 420 [2018-09-14 17:35:09,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:09,379 INFO L225 Difference]: With dead ends: 198135 [2018-09-14 17:35:09,379 INFO L226 Difference]: Without dead ends: 104258 [2018-09-14 17:35:09,579 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1693 GetRequests, 1673 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-09-14 17:35:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104258 states. [2018-09-14 17:35:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104258 to 103578. [2018-09-14 17:35:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103578 states. [2018-09-14 17:35:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103578 states to 103578 states and 127228 transitions. [2018-09-14 17:35:12,083 INFO L78 Accepts]: Start accepts. Automaton has 103578 states and 127228 transitions. Word has length 420 [2018-09-14 17:35:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:12,084 INFO L480 AbstractCegarLoop]: Abstraction has 103578 states and 127228 transitions. [2018-09-14 17:35:12,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:35:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 103578 states and 127228 transitions. [2018-09-14 17:35:12,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-09-14 17:35:12,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:12,122 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:35:12,123 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:12,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1943566775, now seen corresponding path program 1 times [2018-09-14 17:35:12,123 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:12,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:12,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:12,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:12,124 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 250 proven. 78 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-14 17:35:12,378 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:12,378 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 [2018-09-14 17:35:12,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:12,387 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:12,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-14 17:35:12,808 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 250 proven. 78 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-14 17:35:13,765 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:13,765 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:35:13,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:13,784 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:14,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-14 17:35:14,209 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 250 proven. 78 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-14 17:35:14,397 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:35:14,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:35:14,398 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:35:14,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:35:14,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:35:14,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:35:14,400 INFO L87 Difference]: Start difference. First operand 103578 states and 127228 transitions. Second operand 9 states. [2018-09-14 17:35:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:35:39,903 INFO L93 Difference]: Finished difference Result 249286 states and 339370 transitions. [2018-09-14 17:35:39,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-14 17:35:39,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 440 [2018-09-14 17:35:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:35:40,433 INFO L225 Difference]: With dead ends: 249286 [2018-09-14 17:35:40,433 INFO L226 Difference]: Without dead ends: 139610 [2018-09-14 17:35:40,729 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1782 GetRequests, 1758 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-14 17:35:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139610 states. [2018-09-14 17:35:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139610 to 139265. [2018-09-14 17:35:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139265 states. [2018-09-14 17:35:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139265 states to 139265 states and 185677 transitions. [2018-09-14 17:35:43,410 INFO L78 Accepts]: Start accepts. Automaton has 139265 states and 185677 transitions. Word has length 440 [2018-09-14 17:35:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:35:43,411 INFO L480 AbstractCegarLoop]: Abstraction has 139265 states and 185677 transitions. [2018-09-14 17:35:43,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:35:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 139265 states and 185677 transitions. [2018-09-14 17:35:43,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-09-14 17:35:43,467 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:35:43,468 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:35:43,468 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:35:43,468 INFO L82 PathProgramCache]: Analyzing trace with hash -30605402, now seen corresponding path program 1 times [2018-09-14 17:35:43,468 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:35:43,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:43,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:43,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:35:43,470 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:35:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 341 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-14 17:35:44,667 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:35:44,667 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:35:44,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:35:44,675 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:35:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:35:44,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:35:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-14 17:35:45,097 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:35:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 168 proven. 162 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-09-14 17:35:45,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:35:45,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:35:45,662 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:35:45,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:35:45,663 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:35:45,663 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:35:45,663 INFO L87 Difference]: Start difference. First operand 139265 states and 185677 transitions. Second operand 5 states. [2018-09-14 17:36:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:36:06,796 INFO L93 Difference]: Finished difference Result 288691 states and 397210 transitions. [2018-09-14 17:36:06,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:36:06,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 442 [2018-09-14 17:36:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:36:07,366 INFO L225 Difference]: With dead ends: 288691 [2018-09-14 17:36:07,366 INFO L226 Difference]: Without dead ends: 148627 [2018-09-14 17:36:08,234 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 879 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:36:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148627 states. [2018-09-14 17:36:10,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148627 to 144725. [2018-09-14 17:36:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144725 states. [2018-09-14 17:36:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144725 states to 144725 states and 195577 transitions. [2018-09-14 17:36:11,424 INFO L78 Accepts]: Start accepts. Automaton has 144725 states and 195577 transitions. Word has length 442 [2018-09-14 17:36:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:36:11,424 INFO L480 AbstractCegarLoop]: Abstraction has 144725 states and 195577 transitions. [2018-09-14 17:36:11,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:36:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 144725 states and 195577 transitions. [2018-09-14 17:36:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2018-09-14 17:36:11,473 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:36:11,474 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 17:36:11,474 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:36:11,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1162796889, now seen corresponding path program 1 times [2018-09-14 17:36:11,474 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:36:11,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:11,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:11,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:36:11,476 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:36:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 501 proven. 2 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-09-14 17:36:12,070 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:12,070 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 [2018-09-14 17:36:12,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:12,079 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:12,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:13,080 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-09-14 17:36:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 553 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-14 17:36:13,289 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:36:13,941 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 Received shutdown request... [2018-09-14 17:36:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 235 proven. 424 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-09-14 17:36:15,403 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:36:15,403 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 [2018-09-14 17:36:15,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:36:15,419 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:36:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:36:15,763 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:36:15,791 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-14 17:36:15,992 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:36:15,993 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:36:15,998 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:36:15,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:36:15 BoogieIcfgContainer [2018-09-14 17:36:15,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:36:15,999 INFO L168 Benchmark]: Toolchain (without parser) took 230967.92 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-14 17:36:16,000 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. [2018-09-14 17:36:16,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2575.42 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:16,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 344.26 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. [2018-09-14 17:36:16,004 INFO L168 Benchmark]: Boogie Preprocessor took 1178.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:16,005 INFO L168 Benchmark]: RCFGBuilder took 10311.50 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 161.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -3.2 MB). Peak memory consumption was 749.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:36:16,006 INFO L168 Benchmark]: TraceAbstraction took 216551.10 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: -249.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-14 17:36:16,015 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 2575.42 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 344.26 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 1178.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 995.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10311.50 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 161.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -3.2 MB). Peak memory consumption was 749.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216551.10 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: -249.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was analyzing trace of length 544 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 216.4s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 179.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9040 SDtfs, 39465 SDslu, 5743 SDs, 0 SdLazy, 67513 SolverSat, 15158 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 142.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6178 GetRequests, 6058 SyntacticMatches, 22 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144725occurred 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: 17.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 8447 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 6267 NumberOfCodeBlocks, 6267 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9270 ConstructedInterpolants, 0 QuantifiedInterpolants, 9509162 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4934 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 28 InterpolantComputations, 11 PerfectInterpolantSequences, 6746/7526 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_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-36-16-030.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-36-16-030.csv Completed graceful shutdown