java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:06:00,784 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:06:00,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:06:00,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:06:00,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:06:00,809 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:06:00,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:06:00,814 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:06:00,817 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:06:00,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:06:00,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:06:00,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:06:00,824 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:06:00,825 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:06:00,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:06:00,827 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:06:00,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:06:00,836 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:06:00,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:06:00,845 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:06:00,846 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:06:00,849 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:06:00,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 22:06:00,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 22:06:00,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 22:06:00,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 22:06:00,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 22:06:00,859 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 22:06:00,860 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 22:06:00,864 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 22:06:00,864 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 22:06:00,865 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 22:06:00,870 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:06:00,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:06:00,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:06:00,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:06:00,901 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:06:00,902 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:06:00,902 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:06:00,902 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:06:00,902 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:06:00,903 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:06:00,903 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:06:00,903 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:06:00,903 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:06:00,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:06:00,904 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:06:00,905 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:06:00,906 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:06:00,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:06:00,906 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:06:00,906 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:06:00,906 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:06:00,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:06:00,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:06:00,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:06:00,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:06:00,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:06:00,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:06:00,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:06:00,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:06:00,910 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:06:00,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:06:01,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:06:01,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:06:01,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:06:01,016 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:06:01,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-10-23 22:06:01,083 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8328ceb14/409174c6ea8042ecb0b325b872686a6d/FLAG640622af1 [2018-10-23 22:06:01,735 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:06:01,738 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-10-23 22:06:01,754 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8328ceb14/409174c6ea8042ecb0b325b872686a6d/FLAG640622af1 [2018-10-23 22:06:01,772 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8328ceb14/409174c6ea8042ecb0b325b872686a6d [2018-10-23 22:06:01,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:06:01,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:06:01,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:06:01,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:06:01,795 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:06:01,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:06:01" (1/1) ... [2018-10-23 22:06:01,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fe9958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:01, skipping insertion in model container [2018-10-23 22:06:01,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:06:01" (1/1) ... [2018-10-23 22:06:01,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:06:01,907 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:06:02,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:06:02,549 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:06:02,770 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:06:02,793 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:06:02,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02 WrapperNode [2018-10-23 22:06:02,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:06:02,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:06:02,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:06:02,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:06:02,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:02,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:06:03,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:06:03,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:06:03,077 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:06:03,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... [2018-10-23 22:06:03,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:06:03,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:06:03,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:06:03,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:06:03,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 22:06:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:06:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:06:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:06:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:06:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:06:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:06:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:06:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:06:08,412 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:06:08,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:06:08 BoogieIcfgContainer [2018-10-23 22:06:08,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:06:08,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:06:08,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:06:08,421 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:06:08,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:06:01" (1/3) ... [2018-10-23 22:06:08,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c0dd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:06:08, skipping insertion in model container [2018-10-23 22:06:08,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:06:02" (2/3) ... [2018-10-23 22:06:08,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c0dd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:06:08, skipping insertion in model container [2018-10-23 22:06:08,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:06:08" (3/3) ... [2018-10-23 22:06:08,427 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label00_false-unreach-call.c [2018-10-23 22:06:08,438 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:06:08,455 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:06:08,475 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:06:08,534 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:06:08,534 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:06:08,535 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:06:08,535 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:06:08,535 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:06:08,535 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:06:08,535 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:06:08,536 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:06:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-23 22:06:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-23 22:06:08,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:08,599 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:06:08,601 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:08,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:08,611 INFO L82 PathProgramCache]: Analyzing trace with hash 321624169, now seen corresponding path program 1 times [2018-10-23 22:06:08,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:08,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:08,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:08,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:08,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:08,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:08,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:06:08,858 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:08,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:06:08,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:06:08,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:06:08,885 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-23 22:06:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:11,308 INFO L93 Difference]: Finished difference Result 783 states and 1371 transitions. [2018-10-23 22:06:11,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:06:11,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-23 22:06:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:11,337 INFO L225 Difference]: With dead ends: 783 [2018-10-23 22:06:11,337 INFO L226 Difference]: Without dead ends: 488 [2018-10-23 22:06:11,349 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:06:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-10-23 22:06:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2018-10-23 22:06:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-10-23 22:06:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 737 transitions. [2018-10-23 22:06:11,453 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 737 transitions. Word has length 13 [2018-10-23 22:06:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:11,454 INFO L481 AbstractCegarLoop]: Abstraction has 488 states and 737 transitions. [2018-10-23 22:06:11,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:06:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 737 transitions. [2018-10-23 22:06:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-23 22:06:11,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:11,458 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:06:11,459 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:11,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:11,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1144152091, now seen corresponding path program 1 times [2018-10-23 22:06:11,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:11,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:11,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:11,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:11,461 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:11,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:11,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:06:11,903 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:11,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:06:11,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:06:11,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:06:11,906 INFO L87 Difference]: Start difference. First operand 488 states and 737 transitions. Second operand 6 states. [2018-10-23 22:06:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:16,248 INFO L93 Difference]: Finished difference Result 1564 states and 2506 transitions. [2018-10-23 22:06:16,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:06:16,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-10-23 22:06:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:16,259 INFO L225 Difference]: With dead ends: 1564 [2018-10-23 22:06:16,259 INFO L226 Difference]: Without dead ends: 1082 [2018-10-23 22:06:16,262 INFO L605 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 [2018-10-23 22:06:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-10-23 22:06:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2018-10-23 22:06:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-10-23 22:06:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1603 transitions. [2018-10-23 22:06:16,321 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1603 transitions. Word has length 86 [2018-10-23 22:06:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:16,322 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1603 transitions. [2018-10-23 22:06:16,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:06:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1603 transitions. [2018-10-23 22:06:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-23 22:06:16,325 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:16,326 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:06:16,326 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:16,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:16,326 INFO L82 PathProgramCache]: Analyzing trace with hash 919002884, now seen corresponding path program 1 times [2018-10-23 22:06:16,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:16,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:16,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:16,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:16,328 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:16,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:16,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:16,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:06:16,493 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:16,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:06:16,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:06:16,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:06:16,494 INFO L87 Difference]: Start difference. First operand 1070 states and 1603 transitions. Second operand 3 states. [2018-10-23 22:06:18,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:18,851 INFO L93 Difference]: Finished difference Result 2535 states and 3860 transitions. [2018-10-23 22:06:18,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:06:18,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2018-10-23 22:06:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:18,865 INFO L225 Difference]: With dead ends: 2535 [2018-10-23 22:06:18,865 INFO L226 Difference]: Without dead ends: 1471 [2018-10-23 22:06:18,870 INFO L605 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 [2018-10-23 22:06:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2018-10-23 22:06:18,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1461. [2018-10-23 22:06:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-10-23 22:06:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2109 transitions. [2018-10-23 22:06:18,938 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2109 transitions. Word has length 87 [2018-10-23 22:06:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:18,939 INFO L481 AbstractCegarLoop]: Abstraction has 1461 states and 2109 transitions. [2018-10-23 22:06:18,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:06:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2109 transitions. [2018-10-23 22:06:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-23 22:06:18,944 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:18,945 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:06:18,945 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:18,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:18,945 INFO L82 PathProgramCache]: Analyzing trace with hash -363526081, now seen corresponding path program 1 times [2018-10-23 22:06:18,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:18,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:18,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:18,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:18,947 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:19,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:19,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:06:19,049 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:19,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:06:19,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:06:19,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:06:19,051 INFO L87 Difference]: Start difference. First operand 1461 states and 2109 transitions. Second operand 3 states. [2018-10-23 22:06:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:20,689 INFO L93 Difference]: Finished difference Result 3308 states and 4868 transitions. [2018-10-23 22:06:20,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:06:20,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-10-23 22:06:20,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:20,706 INFO L225 Difference]: With dead ends: 3308 [2018-10-23 22:06:20,706 INFO L226 Difference]: Without dead ends: 1853 [2018-10-23 22:06:20,713 INFO L605 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 [2018-10-23 22:06:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2018-10-23 22:06:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1847. [2018-10-23 22:06:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2018-10-23 22:06:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2612 transitions. [2018-10-23 22:06:20,764 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2612 transitions. Word has length 88 [2018-10-23 22:06:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:20,765 INFO L481 AbstractCegarLoop]: Abstraction has 1847 states and 2612 transitions. [2018-10-23 22:06:20,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:06:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2612 transitions. [2018-10-23 22:06:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-23 22:06:20,767 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:20,768 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:06:20,768 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:20,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1267945301, now seen corresponding path program 1 times [2018-10-23 22:06:20,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:20,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:20,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:20,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:20,770 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:21,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:21,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:06:21,008 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:21,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:06:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:06:21,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:06:21,009 INFO L87 Difference]: Start difference. First operand 1847 states and 2612 transitions. Second operand 6 states. [2018-10-23 22:06:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:25,514 INFO L93 Difference]: Finished difference Result 6013 states and 8876 transitions. [2018-10-23 22:06:25,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:06:25,515 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-10-23 22:06:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:25,540 INFO L225 Difference]: With dead ends: 6013 [2018-10-23 22:06:25,540 INFO L226 Difference]: Without dead ends: 4172 [2018-10-23 22:06:25,552 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:06:25,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2018-10-23 22:06:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 4107. [2018-10-23 22:06:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2018-10-23 22:06:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5492 transitions. [2018-10-23 22:06:25,671 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5492 transitions. Word has length 94 [2018-10-23 22:06:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:25,671 INFO L481 AbstractCegarLoop]: Abstraction has 4107 states and 5492 transitions. [2018-10-23 22:06:25,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:06:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5492 transitions. [2018-10-23 22:06:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-23 22:06:25,674 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:25,674 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:06:25,674 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:25,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:25,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1445719641, now seen corresponding path program 1 times [2018-10-23 22:06:25,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:25,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:25,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:25,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:25,676 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:26,235 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-23 22:06:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:26,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:06:26,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 22:06:26,323 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:26,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 22:06:26,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 22:06:26,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:06:26,325 INFO L87 Difference]: Start difference. First operand 4107 states and 5492 transitions. Second operand 7 states. [2018-10-23 22:06:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:30,566 INFO L93 Difference]: Finished difference Result 9565 states and 13475 transitions. [2018-10-23 22:06:30,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 22:06:30,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-10-23 22:06:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:30,597 INFO L225 Difference]: With dead ends: 9565 [2018-10-23 22:06:30,597 INFO L226 Difference]: Without dead ends: 5269 [2018-10-23 22:06:30,619 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-23 22:06:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2018-10-23 22:06:30,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 4935. [2018-10-23 22:06:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2018-10-23 22:06:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6612 transitions. [2018-10-23 22:06:30,747 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6612 transitions. Word has length 108 [2018-10-23 22:06:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:30,748 INFO L481 AbstractCegarLoop]: Abstraction has 4935 states and 6612 transitions. [2018-10-23 22:06:30,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 22:06:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6612 transitions. [2018-10-23 22:06:30,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-23 22:06:30,750 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:30,750 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:06:30,750 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:30,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:30,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1076492435, now seen corresponding path program 1 times [2018-10-23 22:06:30,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:30,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:30,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:30,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:30,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:31,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:06:31,557 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:06:31,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-10-23 22:06:31,560 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-23 22:06:31,650 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:06:31,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:06:36,240 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:06:52,996 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-23 22:06:52,997 INFO L272 AbstractInterpreter]: Visited 140 different actions 406 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-23 22:06:53,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:53,049 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-23 22:06:53,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:06:53,050 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 22:06:53,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:53,062 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 22:06:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:53,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 22:06:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:53,344 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-23 22:06:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:53,543 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:06:53,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-10-23 22:06:53,544 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:53,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:06:53,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:06:53,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-10-23 22:06:53,545 INFO L87 Difference]: Start difference. First operand 4935 states and 6612 transitions. Second operand 3 states. [2018-10-23 22:06:55,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:06:55,856 INFO L93 Difference]: Finished difference Result 10820 states and 14905 transitions. [2018-10-23 22:06:55,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:06:55,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-10-23 22:06:55,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:06:55,882 INFO L225 Difference]: With dead ends: 10820 [2018-10-23 22:06:55,882 INFO L226 Difference]: Without dead ends: 5891 [2018-10-23 22:06:55,917 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-10-23 22:06:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5891 states. [2018-10-23 22:06:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5891 to 5679. [2018-10-23 22:06:56,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5679 states. [2018-10-23 22:06:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7518 transitions. [2018-10-23 22:06:56,045 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7518 transitions. Word has length 145 [2018-10-23 22:06:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:06:56,046 INFO L481 AbstractCegarLoop]: Abstraction has 5679 states and 7518 transitions. [2018-10-23 22:06:56,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:06:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7518 transitions. [2018-10-23 22:06:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-23 22:06:56,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:06:56,050 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:06:56,051 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:06:56,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:06:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1768948367, now seen corresponding path program 1 times [2018-10-23 22:06:56,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:06:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:56,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:06:56,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:06:56,053 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:06:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:06:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:06:56,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:06:56,842 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:06:56,842 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-23 22:06:56,842 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-23 22:06:56,853 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:06:56,853 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:06:59,086 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:07:14,536 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:07:14,537 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-23 22:07:14,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:07:14,573 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:07:20,412 INFO L232 lantSequenceWeakener]: Weakened 93 states. On average, predicates are now at 73.38% of their original sizes. [2018-10-23 22:07:20,412 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:07:32,618 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:07:32,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:07:32,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [10] total 25 [2018-10-23 22:07:32,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:07:32,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-23 22:07:32,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-23 22:07:32,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-10-23 22:07:32,622 INFO L87 Difference]: Start difference. First operand 5679 states and 7518 transitions. Second operand 17 states. Received shutdown request... [2018-10-23 22:09:55,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-23 22:09:55,152 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:09:55,158 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:09:55,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:09:55 BoogieIcfgContainer [2018-10-23 22:09:55,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:09:55,159 INFO L168 Benchmark]: Toolchain (without parser) took 233372.96 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 976.5 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:55,160 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-23 22:09:55,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1005.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:55,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 281.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:55,162 INFO L168 Benchmark]: Boogie Preprocessor took 155.38 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:09:55,163 INFO L168 Benchmark]: RCFGBuilder took 5180.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:55,164 INFO L168 Benchmark]: TraceAbstraction took 226743.94 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 844.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:55,169 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1005.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 281.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.38 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5180.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226743.94 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 844.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 24). Cancelled while BasicCegarLoop was constructing difference of abstraction (5679states) and FLOYD_HOARE automaton (currently 17 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1565 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 226.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 164.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2056 SDtfs, 5182 SDslu, 1112 SDs, 0 SdLazy, 10018 SolverSat, 1623 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 574 GetRequests, 518 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5679occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9951755007558579 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 243.90625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 639 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 991 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1126 ConstructedInterpolants, 0 QuantifiedInterpolants, 955437 SizeOfPredicates, 2 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 58/155 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown