java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label03_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:29:38,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:29:38,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:29:38,570 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:29:38,570 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:29:38,571 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:29:38,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:29:38,574 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:29:38,576 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:29:38,577 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:29:38,578 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:29:38,578 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:29:38,579 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:29:38,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:29:38,581 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:29:38,582 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:29:38,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:29:38,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:29:38,587 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:29:38,588 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:29:38,589 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:29:38,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:29:38,593 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:29:38,602 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:29:38,619 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:29:38,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:29:38,623 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:29:38,623 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:29:38,623 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:29:38,623 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:29:38,624 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:29:38,624 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:29:38,624 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:29:38,624 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:29:38,624 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:29:38,625 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:29:38,626 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:29:38,626 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:29:38,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:29:38,626 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:29:38,627 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:29:38,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:29:38,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:29:38,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:29:38,628 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:29:38,628 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:29:38,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:29:38,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:29:38,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:29:38,630 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:29:38,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:29:38,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:29:38,630 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:29:38,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:29:38,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:29:38,631 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:29:38,631 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:29:38,631 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:29:38,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:29:38,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:29:38,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:29:38,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:29:38,692 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:29:38,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label03_false-unreach-call.c [2018-11-07 00:29:38,752 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a62ea35/5d569f57a0544253a34c9f9f39fb4c2c/FLAG05c2bb416 [2018-11-07 00:29:39,447 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:29:39,449 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label03_false-unreach-call.c [2018-11-07 00:29:39,480 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a62ea35/5d569f57a0544253a34c9f9f39fb4c2c/FLAG05c2bb416 [2018-11-07 00:29:39,499 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a62ea35/5d569f57a0544253a34c9f9f39fb4c2c [2018-11-07 00:29:39,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:29:39,514 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:29:39,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:29:39,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:29:39,524 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:29:39,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:29:39" (1/1) ... [2018-11-07 00:29:39,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d140be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:39, skipping insertion in model container [2018-11-07 00:29:39,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:29:39" (1/1) ... [2018-11-07 00:29:39,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:29:39,642 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:29:40,323 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:29:40,327 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:29:40,585 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:29:40,607 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:29:40,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40 WrapperNode [2018-11-07 00:29:40,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:29:40,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:29:40,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:29:40,609 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:29:40,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:29:40,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:29:40,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:29:40,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:29:40,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... [2018-11-07 00:29:40,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:29:40,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:29:40,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:29:40,977 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:29:40,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:29:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:29:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:29:41,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:29:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:29:41,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:29:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:29:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:29:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:29:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:29:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:29:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:29:47,132 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:29:47,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:29:47 BoogieIcfgContainer [2018-11-07 00:29:47,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:29:47,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:29:47,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:29:47,138 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:29:47,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:29:39" (1/3) ... [2018-11-07 00:29:47,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed54bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:29:47, skipping insertion in model container [2018-11-07 00:29:47,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:29:40" (2/3) ... [2018-11-07 00:29:47,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed54bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:29:47, skipping insertion in model container [2018-11-07 00:29:47,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:29:47" (3/3) ... [2018-11-07 00:29:47,142 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label03_false-unreach-call.c [2018-11-07 00:29:47,153 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:29:47,162 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:29:47,180 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:29:47,221 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:29:47,221 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:29:47,221 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:29:47,222 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:29:47,222 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:29:47,222 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:29:47,222 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:29:47,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:29:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 00:29:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 00:29:47,263 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:29:47,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:29:47,267 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:29:47,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:47,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2114670117, now seen corresponding path program 1 times [2018-11-07 00:29:47,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:29:47,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:47,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:29:47,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:47,326 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:29:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:29:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:47,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:29:47,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:29:47,589 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:47,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:29:47,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:29:47,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:29:47,617 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 00:29:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:29:51,296 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 00:29:51,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:29:51,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-07 00:29:51,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:29:51,330 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 00:29:51,331 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 00:29:51,341 INFO L604 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 [2018-11-07 00:29:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 00:29:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 00:29:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 00:29:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1343 transitions. [2018-11-07 00:29:51,455 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1343 transitions. Word has length 13 [2018-11-07 00:29:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:29:51,455 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1343 transitions. [2018-11-07 00:29:51,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:29:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1343 transitions. [2018-11-07 00:29:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-07 00:29:51,465 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:29:51,465 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:29:51,466 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:29:51,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:51,467 INFO L82 PathProgramCache]: Analyzing trace with hash -631689799, now seen corresponding path program 1 times [2018-11-07 00:29:51,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:29:51,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:51,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:29:51,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:51,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:29:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:29:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:51,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:29:51,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:29:51,877 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:51,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:29:51,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:29:51,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:29:51,881 INFO L87 Difference]: Start difference. First operand 744 states and 1343 transitions. Second operand 6 states. [2018-11-07 00:29:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:29:59,553 INFO L93 Difference]: Finished difference Result 2846 states and 5292 transitions. [2018-11-07 00:29:59,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:29:59,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-11-07 00:29:59,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:29:59,582 INFO L225 Difference]: With dead ends: 2846 [2018-11-07 00:29:59,582 INFO L226 Difference]: Without dead ends: 2108 [2018-11-07 00:29:59,590 INFO L604 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 [2018-11-07 00:29:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2018-11-07 00:29:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2090. [2018-11-07 00:29:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-07 00:29:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3323 transitions. [2018-11-07 00:29:59,680 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3323 transitions. Word has length 86 [2018-11-07 00:29:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:29:59,681 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3323 transitions. [2018-11-07 00:29:59,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:29:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3323 transitions. [2018-11-07 00:29:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-11-07 00:29:59,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:29:59,687 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:29:59,687 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:29:59,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:59,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1047339596, now seen corresponding path program 1 times [2018-11-07 00:29:59,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:29:59,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:59,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:29:59,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:59,689 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:29:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:29:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:59,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:29:59,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:29:59,905 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:59,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:29:59,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:29:59,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:29:59,906 INFO L87 Difference]: Start difference. First operand 2090 states and 3323 transitions. Second operand 6 states. [2018-11-07 00:30:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:04,944 INFO L93 Difference]: Finished difference Result 5549 states and 9209 transitions. [2018-11-07 00:30:04,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:30:04,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-11-07 00:30:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:04,968 INFO L225 Difference]: With dead ends: 5549 [2018-11-07 00:30:04,969 INFO L226 Difference]: Without dead ends: 3465 [2018-11-07 00:30:04,983 INFO L604 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 [2018-11-07 00:30:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2018-11-07 00:30:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3433. [2018-11-07 00:30:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2018-11-07 00:30:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5124 transitions. [2018-11-07 00:30:05,079 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5124 transitions. Word has length 115 [2018-11-07 00:30:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:05,080 INFO L480 AbstractCegarLoop]: Abstraction has 3433 states and 5124 transitions. [2018-11-07 00:30:05,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:30:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5124 transitions. [2018-11-07 00:30:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-07 00:30:05,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:05,085 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:05,085 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:05,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:05,085 INFO L82 PathProgramCache]: Analyzing trace with hash -306297911, now seen corresponding path program 1 times [2018-11-07 00:30:05,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:05,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:05,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:05,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:05,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:05,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:30:05,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:30:05,347 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:30:05,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:30:05,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:30:05,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:30:05,348 INFO L87 Difference]: Start difference. First operand 3433 states and 5124 transitions. Second operand 6 states. [2018-11-07 00:30:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:09,579 INFO L93 Difference]: Finished difference Result 8911 states and 13439 transitions. [2018-11-07 00:30:09,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:30:09,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-11-07 00:30:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:09,615 INFO L225 Difference]: With dead ends: 8911 [2018-11-07 00:30:09,616 INFO L226 Difference]: Without dead ends: 5484 [2018-11-07 00:30:09,638 INFO L604 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 [2018-11-07 00:30:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5484 states. [2018-11-07 00:30:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5484 to 5455. [2018-11-07 00:30:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5455 states. [2018-11-07 00:30:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 7720 transitions. [2018-11-07 00:30:09,801 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 7720 transitions. Word has length 158 [2018-11-07 00:30:09,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:09,802 INFO L480 AbstractCegarLoop]: Abstraction has 5455 states and 7720 transitions. [2018-11-07 00:30:09,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:30:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 7720 transitions. [2018-11-07 00:30:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-07 00:30:09,807 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:09,807 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:09,808 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:09,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:09,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1241846344, now seen corresponding path program 1 times [2018-11-07 00:30:09,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:09,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:09,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:09,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:09,810 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:10,163 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:30:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:30:10,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:10,416 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:30:10,417 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-11-07 00:30:10,421 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:30:10,520 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:30:10,521 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:30:14,746 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:30:14,747 INFO L272 AbstractInterpreter]: Visited 150 different actions 150 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:30:14,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:14,757 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:30:16,917 INFO L227 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 77.26% of their original sizes. [2018-11-07 00:30:16,917 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:30:17,324 INFO L415 sIntCurrentIteration]: We unified 227 AI predicates to 227 [2018-11-07 00:30:17,324 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:30:17,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:30:17,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 00:30:17,325 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:30:17,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:30:17,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:30:17,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:30:17,327 INFO L87 Difference]: Start difference. First operand 5455 states and 7720 transitions. Second operand 8 states. [2018-11-07 00:30:21,391 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:30:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:57,567 INFO L93 Difference]: Finished difference Result 11244 states and 15945 transitions. [2018-11-07 00:30:57,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:30:57,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2018-11-07 00:30:57,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:57,590 INFO L225 Difference]: With dead ends: 11244 [2018-11-07 00:30:57,590 INFO L226 Difference]: Without dead ends: 5795 [2018-11-07 00:30:57,605 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:30:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2018-11-07 00:30:57,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5793. [2018-11-07 00:30:57,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5793 states. [2018-11-07 00:30:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5793 states to 5793 states and 8066 transitions. [2018-11-07 00:30:57,739 INFO L78 Accepts]: Start accepts. Automaton has 5793 states and 8066 transitions. Word has length 228 [2018-11-07 00:30:57,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:57,739 INFO L480 AbstractCegarLoop]: Abstraction has 5793 states and 8066 transitions. [2018-11-07 00:30:57,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:30:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5793 states and 8066 transitions. [2018-11-07 00:30:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 00:30:57,744 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:57,745 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:57,745 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:57,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:57,745 INFO L82 PathProgramCache]: Analyzing trace with hash -524091392, now seen corresponding path program 1 times [2018-11-07 00:30:57,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:57,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:57,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:57,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:57,748 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 00:30:58,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:58,113 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:30:58,113 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-11-07 00:30:58,114 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:30:58,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:30:58,133 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:31:14,387 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:31:14,388 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:31:14,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:31:14,395 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:31:16,581 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 77.83% of their original sizes. [2018-11-07 00:31:16,581 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:31:20,348 INFO L415 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2018-11-07 00:31:20,348 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:31:20,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:31:20,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 20 [2018-11-07 00:31:20,349 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:31:20,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 00:31:20,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 00:31:20,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-11-07 00:31:20,352 INFO L87 Difference]: Start difference. First operand 5793 states and 8066 transitions. Second operand 18 states. [2018-11-07 00:31:41,607 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:33:18,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:18,925 INFO L93 Difference]: Finished difference Result 11588 states and 16330 transitions. [2018-11-07 00:33:18,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 00:33:18,925 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 253 [2018-11-07 00:33:18,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:18,950 INFO L225 Difference]: With dead ends: 11588 [2018-11-07 00:33:18,951 INFO L226 Difference]: Without dead ends: 6139 [2018-11-07 00:33:18,965 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2018-11-07 00:33:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2018-11-07 00:33:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6133. [2018-11-07 00:33:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6133 states. [2018-11-07 00:33:19,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 8421 transitions. [2018-11-07 00:33:19,157 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 8421 transitions. Word has length 253 [2018-11-07 00:33:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:19,158 INFO L480 AbstractCegarLoop]: Abstraction has 6133 states and 8421 transitions. [2018-11-07 00:33:19,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 00:33:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 8421 transitions. [2018-11-07 00:33:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-11-07 00:33:19,166 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:19,166 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:33:19,167 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:19,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:19,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1209965915, now seen corresponding path program 1 times [2018-11-07 00:33:19,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:19,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:19,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:19,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:19,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 91 proven. 69 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-07 00:33:19,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:33:19,547 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:33:19,547 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 321 with the following transitions: [2018-11-07 00:33:19,548 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:33:19,552 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:33:19,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:33:20,980 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:33:21,987 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 00:33:21,987 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 00:33:21,988 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 00:33:21,989 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:33:21,989 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:33:22,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:22,000 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:33:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:22,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:33:22,152 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 00:33:22,353 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:33:22,353 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:33:22,357 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:33:22,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:33:22 BoogieIcfgContainer [2018-11-07 00:33:22,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:33:22,359 INFO L168 Benchmark]: Toolchain (without parser) took 222845.23 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 860.2 MB. Max. memory is 7.1 GB. [2018-11-07 00:33:22,360 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-11-07 00:33:22,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1092.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:33:22,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -869.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:33:22,362 INFO L168 Benchmark]: Boogie Preprocessor took 145.90 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:33:22,363 INFO L168 Benchmark]: RCFGBuilder took 6156.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 259.6 MB). Peak memory consumption was 259.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:33:22,364 INFO L168 Benchmark]: TraceAbstraction took 215223.61 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 642.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:33:22,373 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1092.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 221.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -869.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.90 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6156.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 259.6 MB). Peak memory consumption was 259.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215223.61 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 642.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was analyzing trace of length 321 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 215.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 179.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1228 SDtfs, 8849 SDslu, 850 SDs, 0 SdLazy, 12573 SolverSat, 3843 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 526 GetRequests, 465 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6133occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 23.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9959645699071132 AbsIntWeakeningRatio, 0.09603340292275574 AbsIntAvgWeakeningVarsNumRemoved, 685.0960334029228 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 87 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 847 ConstructedInterpolants, 0 QuantifiedInterpolants, 598090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 39/106 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown