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/Problem10_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:00:33,573 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:00:33,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:00:33,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:00:33,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:00:33,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:00:33,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:00:33,599 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:00:33,601 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:00:33,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:00:33,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:00:33,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:00:33,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:00:33,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:00:33,606 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:00:33,607 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:00:33,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:00:33,609 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:00:33,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:00:33,615 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:00:33,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:00:33,623 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:00:33,626 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:00:33,636 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 21:00:33,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:00:33,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:00:33,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:00:33,672 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:00:33,672 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:00:33,673 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:00:33,673 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:00:33,673 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:00:33,673 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:00:33,673 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:00:33,673 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:00:33,674 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:00:33,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:00:33,675 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:00:33,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:00:33,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:00:33,677 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:00:33,677 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:00:33,677 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:00:33,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:00:33,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:00:33,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:00:33,678 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:00:33,678 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:00:33,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:00:33,679 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:00:33,679 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:00:33,679 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:00:33,679 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:00:33,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:00:33,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:00:33,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:00:33,765 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:00:33,766 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:00:33,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-10-24 21:00:33,832 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/858133354/4f092622945841bbb779f0efd48841bb/FLAG51d7d52a7 [2018-10-24 21:00:34,381 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:00:34,382 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-10-24 21:00:34,406 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/858133354/4f092622945841bbb779f0efd48841bb/FLAG51d7d52a7 [2018-10-24 21:00:34,427 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/858133354/4f092622945841bbb779f0efd48841bb [2018-10-24 21:00:34,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:00:34,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:00:34,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:00:34,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:00:34,449 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:00:34,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:34" (1/1) ... [2018-10-24 21:00:34,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4599f062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:34, skipping insertion in model container [2018-10-24 21:00:34,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:34" (1/1) ... [2018-10-24 21:00:34,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:00:34,539 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:00:35,035 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:00:35,040 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:00:35,192 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:00:35,215 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:00:35,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35 WrapperNode [2018-10-24 21:00:35,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:00:35,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:00:35,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:00:35,217 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:00:35,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:00:35,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:00:35,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:00:35,449 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:00:35,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (1/1) ... [2018-10-24 21:00:35,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:00:35,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:00:35,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:00:35,578 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:00:35,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (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 21:00:35,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:00:35,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:00:35,658 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:00:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:00:35,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:00:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:00:35,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:00:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:00:38,956 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:00:38,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:38 BoogieIcfgContainer [2018-10-24 21:00:38,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:00:38,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:00:38,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:00:38,963 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:00:38,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:00:34" (1/3) ... [2018-10-24 21:00:38,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e433909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:38, skipping insertion in model container [2018-10-24 21:00:38,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:35" (2/3) ... [2018-10-24 21:00:38,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e433909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:38, skipping insertion in model container [2018-10-24 21:00:38,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:38" (3/3) ... [2018-10-24 21:00:38,967 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label35_true-unreach-call.c [2018-10-24 21:00:38,979 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:00:38,991 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:00:39,010 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:00:39,059 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:00:39,059 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:00:39,059 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:00:39,059 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:00:39,060 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:00:39,060 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:00:39,060 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:00:39,060 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:00:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 21:00:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-24 21:00:39,108 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:39,109 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, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:39,111 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:39,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1718908404, now seen corresponding path program 1 times [2018-10-24 21:00:39,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:39,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:39,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:39,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:39,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:39,592 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:00:39,628 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 21:00:39,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:39,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:00:39,631 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:39,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:00:39,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:00:39,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:00:39,657 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 21:00:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:41,692 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 21:00:41,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:00:41,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-10-24 21:00:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:41,714 INFO L225 Difference]: With dead ends: 574 [2018-10-24 21:00:41,714 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 21:00:41,722 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:00:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 21:00:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 21:00:41,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 21:00:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 21:00:41,795 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 58 [2018-10-24 21:00:41,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:41,796 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 21:00:41,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:00:41,796 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 21:00:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-24 21:00:41,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:41,806 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:41,807 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:41,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:41,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2064846773, now seen corresponding path program 1 times [2018-10-24 21:00:41,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:41,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:41,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:41,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:41,809 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:42,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:42,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:00:42,092 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:42,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:00:42,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:00:42,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:00:42,097 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 21:00:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:45,817 INFO L93 Difference]: Finished difference Result 1289 states and 2315 transitions. [2018-10-24 21:00:45,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:00:45,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-10-24 21:00:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:45,829 INFO L225 Difference]: With dead ends: 1289 [2018-10-24 21:00:45,830 INFO L226 Difference]: Without dead ends: 939 [2018-10-24 21:00:45,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:00:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-10-24 21:00:45,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 926. [2018-10-24 21:00:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-10-24 21:00:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1444 transitions. [2018-10-24 21:00:45,909 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1444 transitions. Word has length 141 [2018-10-24 21:00:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:45,909 INFO L481 AbstractCegarLoop]: Abstraction has 926 states and 1444 transitions. [2018-10-24 21:00:45,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:00:45,910 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1444 transitions. [2018-10-24 21:00:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 21:00:45,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:45,917 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, 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] [2018-10-24 21:00:45,917 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:45,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:45,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1308524843, now seen corresponding path program 1 times [2018-10-24 21:00:45,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:45,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:45,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:45,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:45,920 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:46,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:46,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:00:46,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:46,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:00:46,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:00:46,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:00:46,233 INFO L87 Difference]: Start difference. First operand 926 states and 1444 transitions. Second operand 6 states. [2018-10-24 21:00:50,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:50,516 INFO L93 Difference]: Finished difference Result 2537 states and 4091 transitions. [2018-10-24 21:00:50,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:00:50,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-24 21:00:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:50,532 INFO L225 Difference]: With dead ends: 2537 [2018-10-24 21:00:50,532 INFO L226 Difference]: Without dead ends: 1617 [2018-10-24 21:00:50,543 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:00:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2018-10-24 21:00:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1586. [2018-10-24 21:00:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2018-10-24 21:00:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2321 transitions. [2018-10-24 21:00:50,610 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2321 transitions. Word has length 157 [2018-10-24 21:00:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:50,611 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 2321 transitions. [2018-10-24 21:00:50,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:00:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2321 transitions. [2018-10-24 21:00:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-24 21:00:50,616 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:50,617 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:50,618 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:50,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1203673723, now seen corresponding path program 1 times [2018-10-24 21:00:50,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:50,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:50,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:50,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:50,621 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:50,967 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:00:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:51,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:51,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:00:51,376 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:51,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:00:51,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:00:51,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:00:51,378 INFO L87 Difference]: Start difference. First operand 1586 states and 2321 transitions. Second operand 6 states. [2018-10-24 21:00:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:52,662 INFO L93 Difference]: Finished difference Result 3508 states and 5316 transitions. [2018-10-24 21:00:52,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:00:52,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-10-24 21:00:52,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:52,682 INFO L225 Difference]: With dead ends: 3508 [2018-10-24 21:00:52,682 INFO L226 Difference]: Without dead ends: 1928 [2018-10-24 21:00:52,689 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:00:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-10-24 21:00:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1889. [2018-10-24 21:00:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2018-10-24 21:00:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2675 transitions. [2018-10-24 21:00:52,750 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2675 transitions. Word has length 181 [2018-10-24 21:00:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:52,751 INFO L481 AbstractCegarLoop]: Abstraction has 1889 states and 2675 transitions. [2018-10-24 21:00:52,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:00:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2675 transitions. [2018-10-24 21:00:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 21:00:52,760 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:52,760 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:52,760 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:52,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:52,761 INFO L82 PathProgramCache]: Analyzing trace with hash 71341271, now seen corresponding path program 1 times [2018-10-24 21:00:52,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:52,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:52,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:52,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:52,763 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:53,197 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 21:00:53,381 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:00:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:54,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:00:54,067 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:00:54,069 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-24 21:00:54,071 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:00:54,154 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:00:54,154 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:00:56,640 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:01:09,014 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:01:09,016 INFO L272 AbstractInterpreter]: Visited 91 different actions 516 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:01:09,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:01:09,053 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:01:12,419 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 77.27% of their original sizes. [2018-10-24 21:01:12,420 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:01:40,193 INFO L413 sIntCurrentIteration]: We have 220 unified AI predicates [2018-10-24 21:01:40,194 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:01:40,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:01:40,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2018-10-24 21:01:40,195 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:01:40,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 21:01:40,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 21:01:40,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-10-24 21:01:40,196 INFO L87 Difference]: Start difference. First operand 1889 states and 2675 transitions. Second operand 18 states. Received shutdown request... [2018-10-24 21:04:37,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 21:04:37,154 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:04:37,160 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:04:37,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:04:37 BoogieIcfgContainer [2018-10-24 21:04:37,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:04:37,161 INFO L168 Benchmark]: Toolchain (without parser) took 242719.45 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 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:37,163 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:04:37,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.58 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:37,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 231.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:37,165 INFO L168 Benchmark]: Boogie Preprocessor took 128.79 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:04:37,165 INFO L168 Benchmark]: RCFGBuilder took 3380.10 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 119.4 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:37,166 INFO L168 Benchmark]: TraceAbstraction took 238201.82 ms. Allocated memory was 2.2 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 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 171.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:37,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.58 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 231.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.2 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.79 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3380.10 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 119.4 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238201.82 ms. Allocated memory was 2.2 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 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 171.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (1889states) and FLOYD_HOARE automaton (currently 21 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (2395 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 238.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 188.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 460 SDtfs, 3740 SDslu, 453 SDs, 0 SdLazy, 5055 SolverSat, 1076 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 259 GetRequests, 180 SyntacticMatches, 37 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 29.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1889occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9946393280632414 AbsIntWeakeningRatio, 0.11818181818181818 AbsIntAvgWeakeningVarsNumRemoved, 195.05 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 758 NumberOfCodeBlocks, 758 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 753 ConstructedInterpolants, 0 QuantifiedInterpolants, 905402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 333/335 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown