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/Problem13_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:32:47,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:32:47,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:32:47,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:32:47,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:32:47,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:32:47,941 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:32:47,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:32:47,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:32:47,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:32:47,948 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:32:47,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:32:47,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:32:47,950 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:32:47,952 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:32:47,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:32:47,953 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:32:47,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:32:47,958 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:32:47,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:32:47,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:32:47,967 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:32:47,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:32:47,989 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 [2018-10-24 21:32:48,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:32:48,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:32:48,021 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:32:48,021 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:32:48,021 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:32:48,022 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:32:48,022 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:32:48,022 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:32:48,022 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:32:48,022 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:32:48,023 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:32:48,023 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:32:48,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:32:48,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:32:48,026 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:32:48,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:32:48,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:32:48,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:32:48,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:32:48,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:32:48,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:32:48,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:32:48,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:32:48,028 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:32:48,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:32:48,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:32:48,029 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:32:48,029 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:32:48,029 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:32:48,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:32:48,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:32:48,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:32:48,104 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:32:48,104 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:32:48,105 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-10-24 21:32:48,174 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb0f7901d/22751ea8070d4362a771b33cd8008ac8/FLAG929fd57f6 [2018-10-24 21:32:48,976 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:32:48,977 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-10-24 21:32:49,019 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb0f7901d/22751ea8070d4362a771b33cd8008ac8/FLAG929fd57f6 [2018-10-24 21:32:49,040 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb0f7901d/22751ea8070d4362a771b33cd8008ac8 [2018-10-24 21:32:49,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:32:49,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:32:49,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:32:49,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:32:49,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:32:49,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:32:49" (1/1) ... [2018-10-24 21:32:49,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6895558e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:49, skipping insertion in model container [2018-10-24 21:32:49,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:32:49" (1/1) ... [2018-10-24 21:32:49,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:32:49,267 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:32:50,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:32:50,728 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:32:51,641 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:32:51,678 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:32:51,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51 WrapperNode [2018-10-24 21:32:51,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:32:51,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:32:51,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:32:51,680 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:32:51,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:51,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:32:52,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:32:52,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:32:52,313 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:32:52,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (1/1) ... [2018-10-24 21:32:52,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:32:52,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:32:52,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:32:52,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:32:52,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (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 [2018-10-24 21:32:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:32:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:32:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:32:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:32:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:32:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:32:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:32:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:32:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:32:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:32:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:32:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:32:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:32:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:33:03,141 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:33:03,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:33:03 BoogieIcfgContainer [2018-10-24 21:33:03,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:33:03,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:33:03,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:33:03,150 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:33:03,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:32:49" (1/3) ... [2018-10-24 21:33:03,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:33:03, skipping insertion in model container [2018-10-24 21:33:03,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:32:51" (2/3) ... [2018-10-24 21:33:03,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:33:03, skipping insertion in model container [2018-10-24 21:33:03,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:33:03" (3/3) ... [2018-10-24 21:33:03,155 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label41_true-unreach-call.c [2018-10-24 21:33:03,165 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:33:03,181 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:33:03,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:33:03,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:33:03,247 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:33:03,247 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:33:03,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:33:03,247 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:33:03,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:33:03,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:33:03,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:33:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 21:33:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-24 21:33:03,302 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:33:03,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:33:03,305 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:33:03,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:33:03,312 INFO L82 PathProgramCache]: Analyzing trace with hash -501349661, now seen corresponding path program 1 times [2018-10-24 21:33:03,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:33:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:03,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:33:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:03,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:33:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:33:03,808 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 21:33:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:33:03,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:33:03,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:33:03,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:33:03,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:33:03,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:33:03,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:33:03,873 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 21:33:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:33:18,700 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-24 21:33:18,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:33:18,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-10-24 21:33:18,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:33:18,753 INFO L225 Difference]: With dead ends: 4063 [2018-10-24 21:33:18,753 INFO L226 Difference]: Without dead ends: 2937 [2018-10-24 21:33:18,766 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:33:18,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-24 21:33:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-24 21:33:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-24 21:33:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-24 21:33:18,994 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 51 [2018-10-24 21:33:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:33:18,995 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-24 21:33:18,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:33:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-24 21:33:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-24 21:33:19,007 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:33:19,008 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:33:19,010 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:33:19,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:33:19,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1322678209, now seen corresponding path program 1 times [2018-10-24 21:33:19,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:33:19,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:19,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:33:19,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:19,013 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:33:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:33:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:33:19,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:33:19,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:33:19,611 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:33:19,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:33:19,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:33:19,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:33:19,614 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-24 21:33:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:33:36,897 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-24 21:33:36,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:33:36,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-10-24 21:33:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:33:36,929 INFO L225 Difference]: With dead ends: 7277 [2018-10-24 21:33:36,929 INFO L226 Difference]: Without dead ends: 5301 [2018-10-24 21:33:36,941 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:33:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-24 21:33:37,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-24 21:33:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-24 21:33:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-24 21:33:37,095 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 122 [2018-10-24 21:33:37,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:33:37,096 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-24 21:33:37,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:33:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-24 21:33:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-24 21:33:37,108 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:33:37,109 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:33:37,109 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:33:37,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:33:37,110 INFO L82 PathProgramCache]: Analyzing trace with hash 497570766, now seen corresponding path program 1 times [2018-10-24 21:33:37,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:33:37,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:37,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:33:37,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:37,117 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:33:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:33:37,410 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:33:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:33:37,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:33:37,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:33:37,807 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:33:37,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:33:37,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:33:37,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:33:37,809 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-24 21:33:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:33:50,766 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-24 21:33:50,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:33:50,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-24 21:33:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:33:50,820 INFO L225 Difference]: With dead ends: 13914 [2018-10-24 21:33:50,821 INFO L226 Difference]: Without dead ends: 8668 [2018-10-24 21:33:50,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:33:50,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-24 21:33:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-24 21:33:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 21:33:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-24 21:33:51,076 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 125 [2018-10-24 21:33:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:33:51,077 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-24 21:33:51,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:33:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-24 21:33:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-24 21:33:51,082 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:33:51,082 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:33:51,082 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:33:51,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:33:51,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1108741538, now seen corresponding path program 1 times [2018-10-24 21:33:51,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:33:51,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:51,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:33:51,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:33:51,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:33:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:33:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:33:51,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:33:51,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:33:51,427 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:33:51,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:33:51,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:33:51,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:33:51,429 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-24 21:34:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:34:08,525 INFO L93 Difference]: Finished difference Result 25983 states and 40339 transitions. [2018-10-24 21:34:08,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:34:08,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-10-24 21:34:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:34:08,605 INFO L225 Difference]: With dead ends: 25983 [2018-10-24 21:34:08,606 INFO L226 Difference]: Without dead ends: 17384 [2018-10-24 21:34:08,635 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:34:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17384 states. [2018-10-24 21:34:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17384 to 17119. [2018-10-24 21:34:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17119 states. [2018-10-24 21:34:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 24326 transitions. [2018-10-24 21:34:09,034 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 24326 transitions. Word has length 135 [2018-10-24 21:34:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:34:09,035 INFO L481 AbstractCegarLoop]: Abstraction has 17119 states and 24326 transitions. [2018-10-24 21:34:09,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:34:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 24326 transitions. [2018-10-24 21:34:09,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-24 21:34:09,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:34:09,039 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:34:09,039 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:34:09,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:34:09,040 INFO L82 PathProgramCache]: Analyzing trace with hash -645200432, now seen corresponding path program 1 times [2018-10-24 21:34:09,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:34:09,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:09,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:34:09,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:09,041 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:34:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:34:09,326 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:34:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:34:09,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:34:09,697 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:34:09,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-10-24 21:34:09,700 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2935], [2937], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 21:34:09,765 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:34:09,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:34:41,152 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:34:41,154 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 21:34:41,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:34:41,169 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:34:44,875 INFO L232 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 72.83% of their original sizes. [2018-10-24 21:34:44,875 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:34:50,007 INFO L413 sIntCurrentIteration]: We have 151 unified AI predicates [2018-10-24 21:34:50,007 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:34:50,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:34:50,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-24 21:34:50,009 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:34:50,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:34:50,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:34:50,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:34:50,010 INFO L87 Difference]: Start difference. First operand 17119 states and 24326 transitions. Second operand 16 states. [2018-10-24 21:35:04,212 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:36:38,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 21:36:38,318 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:36:38,324 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:36:38,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:36:38 BoogieIcfgContainer [2018-10-24 21:36:38,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:36:38,325 INFO L168 Benchmark]: Toolchain (without parser) took 229271.31 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -558.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,327 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 21:36:38,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2623.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 632.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,329 INFO L168 Benchmark]: Boogie Preprocessor took 322.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,330 INFO L168 Benchmark]: RCFGBuilder took 10506.86 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.6 MB). Peak memory consumption was 656.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,331 INFO L168 Benchmark]: TraceAbstraction took 215180.97 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 219.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 21:36:38,337 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2623.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 632.50 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 322.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10506.86 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.6 MB). Peak memory consumption was 656.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215180.97 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 219.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 144). Cancelled while BasicCegarLoop was constructing difference of abstraction (17119states) and FLOYD_HOARE automaton (currently 15 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (5221 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 215.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 170.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2135 SDtfs, 15769 SDslu, 2344 SDs, 0 SdLazy, 25179 SolverSat, 7774 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 96.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 194 GetRequests, 141 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17119occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9941008660213957 AbsIntWeakeningRatio, 0.1390728476821192 AbsIntAvgWeakeningVarsNumRemoved, 613.5960264900663 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 580 ConstructedInterpolants, 0 QuantifiedInterpolants, 331108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 159/176 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown