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_label15_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:05:30,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:05:30,310 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:05:30,326 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:05:30,327 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:05:30,328 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:05:30,330 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:05:30,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:05:30,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:05:30,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:05:30,336 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:05:30,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:05:30,337 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:05:30,338 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:05:30,339 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:05:30,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:05:30,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:05:30,343 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:05:30,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:05:30,347 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:05:30,348 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:05:30,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:05:30,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:05:30,371 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:05:30,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:05:30,372 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:05:30,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:05:30,375 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 18:05:30,397 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:05:30,397 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:05:30,398 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:05:30,399 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:05:30,399 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:05:30,399 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:05:30,399 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:05:30,399 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:05:30,400 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:05:30,400 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:05:30,401 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:05:30,401 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:05:30,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:05:30,402 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:05:30,402 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:05:30,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:05:30,402 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:05:30,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:05:30,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:05:30,405 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:05:30,405 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:05:30,405 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:05:30,405 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:05:30,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:05:30,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:05:30,406 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:05:30,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:05:30,407 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:05:30,408 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:05:30,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:05:30,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:05:30,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:05:30,492 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:05:30,492 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:05:30,493 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-10-24 18:05:30,558 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b2cd68b5/e86d04f430bc4cf3bf89811bd51c610b/FLAG57269c2a5 [2018-10-24 18:05:31,188 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:05:31,190 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label15_false-unreach-call.c [2018-10-24 18:05:31,211 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b2cd68b5/e86d04f430bc4cf3bf89811bd51c610b/FLAG57269c2a5 [2018-10-24 18:05:31,231 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b2cd68b5/e86d04f430bc4cf3bf89811bd51c610b [2018-10-24 18:05:31,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:05:31,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:05:31,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:05:31,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:05:31,253 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:05:31,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:05:31" (1/1) ... [2018-10-24 18:05:31,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:31, skipping insertion in model container [2018-10-24 18:05:31,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:05:31" (1/1) ... [2018-10-24 18:05:31,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:05:31,329 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:05:31,844 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:05:31,851 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:05:32,012 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:05:32,048 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:05:32,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32 WrapperNode [2018-10-24 18:05:32,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:05:32,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:05:32,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:05:32,050 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:05:32,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:05:32,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:05:32,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:05:32,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:05:32,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (1/1) ... [2018-10-24 18:05:32,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:05:32,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:05:32,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:05:32,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:05:32,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (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 18:05:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:05:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:05:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:05:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:05:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:05:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:05:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:05:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:05:35,490 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:05:35,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:05:35 BoogieIcfgContainer [2018-10-24 18:05:35,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:05:35,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:05:35,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:05:35,497 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:05:35,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:05:31" (1/3) ... [2018-10-24 18:05:35,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cf6153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:05:35, skipping insertion in model container [2018-10-24 18:05:35,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:05:32" (2/3) ... [2018-10-24 18:05:35,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cf6153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:05:35, skipping insertion in model container [2018-10-24 18:05:35,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:05:35" (3/3) ... [2018-10-24 18:05:35,502 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label15_false-unreach-call.c [2018-10-24 18:05:35,512 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:05:35,524 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:05:35,542 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:05:35,589 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:05:35,589 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:05:35,590 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:05:35,590 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:05:35,590 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:05:35,590 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:05:35,591 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:05:35,591 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:05:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 18:05:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 18:05:35,636 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:05:35,637 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:05:35,639 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:05:35,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:05:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1719497273, now seen corresponding path program 1 times [2018-10-24 18:05:35,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:05:35,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:05:35,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:05:35,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:05:35,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:05:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:05:36,036 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:05:36,145 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 18:05:36,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:05:36,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:05:36,148 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:05:36,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:05:36,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:05:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:05:36,174 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 18:05:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:05:37,819 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 18:05:37,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:05:37,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-10-24 18:05:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:05:37,842 INFO L225 Difference]: With dead ends: 574 [2018-10-24 18:05:37,843 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 18:05:37,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:05:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 18:05:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 18:05:37,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 18:05:37,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-24 18:05:37,930 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 17 [2018-10-24 18:05:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:05:37,930 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-24 18:05:37,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:05:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-24 18:05:37,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 18:05:37,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:05:37,936 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:05:37,937 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:05:37,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:05:37,937 INFO L82 PathProgramCache]: Analyzing trace with hash 115902964, now seen corresponding path program 1 times [2018-10-24 18:05:37,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:05:37,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:05:37,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:05:37,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:05:37,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:05:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:05:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:05:38,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:05:38,358 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:05:38,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-10-24 18:05:38,362 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 18:05:38,442 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:05:38,443 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:05:41,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:05:41,410 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:05:41,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:05:41,424 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:05:43,258 INFO L232 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 73.25% of their original sizes. [2018-10-24 18:05:43,258 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:05:46,852 INFO L413 sIntCurrentIteration]: We have 104 unified AI predicates [2018-10-24 18:05:46,852 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:05:46,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:05:46,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-24 18:05:46,853 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:05:46,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 18:05:46,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 18:05:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:05:46,856 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-24 18:06:03,291 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:06:40,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:06:40,941 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-24 18:06:40,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:06:40,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-10-24 18:06:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:06:40,953 INFO L225 Difference]: With dead ends: 855 [2018-10-24 18:06:40,953 INFO L226 Difference]: Without dead ends: 505 [2018-10-24 18:06:40,959 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-24 18:06:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-24 18:06:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-24 18:06:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-24 18:06:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-24 18:06:41,038 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 105 [2018-10-24 18:06:41,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:06:41,038 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-24 18:06:41,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 18:06:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-24 18:06:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-24 18:06:41,043 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:06:41,044 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 18:06:41,044 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:06:41,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:06:41,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1510191846, now seen corresponding path program 1 times [2018-10-24 18:06:41,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:06:41,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:06:41,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:06:41,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:06:41,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:06:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:06:41,459 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:06:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 18:06:41,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:06:41,741 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:06:41,741 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-10-24 18:06:41,742 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 18:06:41,747 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:06:41,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:06:42,923 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:06:55,566 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:06:55,566 INFO L272 AbstractInterpreter]: Visited 96 different actions 546 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 18:06:55,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:06:55,576 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:06:57,347 INFO L232 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 73.25% of their original sizes. [2018-10-24 18:06:57,347 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:07:08,997 INFO L413 sIntCurrentIteration]: We have 175 unified AI predicates [2018-10-24 18:07:08,998 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:07:08,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:07:08,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 19 [2018-10-24 18:07:08,998 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:07:08,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 18:07:08,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 18:07:08,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-10-24 18:07:09,000 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 17 states. [2018-10-24 18:08:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:08:52,462 INFO L93 Difference]: Finished difference Result 1309 states and 2189 transitions. [2018-10-24 18:08:52,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:08:52,462 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 176 [2018-10-24 18:08:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:08:52,470 INFO L225 Difference]: With dead ends: 1309 [2018-10-24 18:08:52,470 INFO L226 Difference]: Without dead ends: 959 [2018-10-24 18:08:52,472 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 143 SyntacticMatches, 17 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2018-10-24 18:08:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2018-10-24 18:08:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 872. [2018-10-24 18:08:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2018-10-24 18:08:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1166 transitions. [2018-10-24 18:08:52,573 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1166 transitions. Word has length 176 [2018-10-24 18:08:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:08:52,574 INFO L481 AbstractCegarLoop]: Abstraction has 872 states and 1166 transitions. [2018-10-24 18:08:52,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-24 18:08:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1166 transitions. [2018-10-24 18:08:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 18:08:52,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:08:52,579 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:08:52,579 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:08:52,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:08:52,579 INFO L82 PathProgramCache]: Analyzing trace with hash 640091935, now seen corresponding path program 1 times [2018-10-24 18:08:52,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:08:52,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:08:52,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:08:52,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:08:52,581 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:08:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:08:52,869 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:08:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 18:08:53,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:08:53,685 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:08:53,685 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-24 18:08:53,686 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 18:08:53,690 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:08:53,690 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:08:55,241 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:09:28,593 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 18:09:28,594 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 18:09:28,595 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 18:09:28,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:09:28,595 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 18:09:28,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:09:28,606 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:09:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:09:28,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:09:28,739 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 18:09:28,940 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 18:09:28,941 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:09:28,947 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:09:28,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:09:28 BoogieIcfgContainer [2018-10-24 18:09:28,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:09:28,948 INFO L168 Benchmark]: Toolchain (without parser) took 237702.47 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 2.2 GB in the end (delta: -771.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 18:09:28,949 INFO L168 Benchmark]: CDTParser took 0.19 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 18:09:28,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.56 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:09:28,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 227.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 692.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -780.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:09:28,951 INFO L168 Benchmark]: Boogie Preprocessor took 131.01 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:09:28,952 INFO L168 Benchmark]: RCFGBuilder took 3083.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:09:28,953 INFO L168 Benchmark]: TraceAbstraction took 233453.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -143.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 18:09:28,958 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 800.56 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 227.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 692.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -780.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.01 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3083.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.2 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233453.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -143.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 34). Cancelled while BasicCegarLoop was analyzing trace of length 186 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 233.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 159.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 3240 SDslu, 180 SDs, 0 SdLazy, 1814 SolverSat, 669 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 296 GetRequests, 224 SyntacticMatches, 36 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 17.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=872occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 51.8s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9927666095267778 AbsIntWeakeningRatio, 0.16487455197132617 AbsIntAvgWeakeningVarsNumRemoved, 123.10394265232975 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 92 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 130311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/101 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown