java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:23:00,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:23:00,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:23:00,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:23:00,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:23:00,271 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:23:00,272 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:23:00,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:23:00,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:23:00,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:23:00,277 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:23:00,277 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:23:00,278 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:23:00,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:23:00,280 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:23:00,281 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:23:00,282 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:23:00,284 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:23:00,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:23:00,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:23:00,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:23:00,289 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:23:00,292 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:23:00,300 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:23:00,334 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:23:00,334 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:23:00,336 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:23:00,336 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:23:00,336 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:23:00,336 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:23:00,336 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:23:00,337 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:23:00,337 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:23:00,337 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:23:00,337 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:23:00,337 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:23:00,339 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:23:00,339 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:23:00,339 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:23:00,339 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:23:00,339 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:23:00,340 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:23:00,340 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:23:00,340 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:23:00,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:23:00,340 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:23:00,341 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:23:00,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:23:00,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:23:00,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:23:00,343 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:23:00,343 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:23:00,344 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:23:00,344 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:23:00,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:23:00,344 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:23:00,345 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:23:00,345 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:23:00,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:23:00,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:23:00,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:23:00,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:23:00,418 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:23:00,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-23 22:23:00,484 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7efda5f/806543eb238a4ea1a795e3f8d91a6112/FLAGd0bce975a [2018-10-23 22:23:01,331 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:23:01,332 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label48_false-unreach-call.c [2018-10-23 22:23:01,363 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7efda5f/806543eb238a4ea1a795e3f8d91a6112/FLAGd0bce975a [2018-10-23 22:23:01,379 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cd7efda5f/806543eb238a4ea1a795e3f8d91a6112 [2018-10-23 22:23:01,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:23:01,392 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:23:01,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:23:01,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:23:01,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:23:01,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:01" (1/1) ... [2018-10-23 22:23:01,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48886557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:01, skipping insertion in model container [2018-10-23 22:23:01,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:23:01" (1/1) ... [2018-10-23 22:23:01,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:23:01,591 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:23:03,018 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:23:03,023 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:23:03,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:23:03,777 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:23:03,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03 WrapperNode [2018-10-23 22:23:03,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:23:03,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:23:03,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:23:03,779 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:23:03,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:03,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:23:04,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:23:04,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:23:04,357 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:23:04,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... [2018-10-23 22:23:04,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:23:04,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:23:04,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:23:04,677 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:23:04,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:23:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:23:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:23:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-23 22:23:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-23 22:23:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-23 22:23:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-23 22:23:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:23:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:23:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:23:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:23:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:23:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:23:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:23:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:23:16,242 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:23:16,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:16 BoogieIcfgContainer [2018-10-23 22:23:16,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:23:16,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:23:16,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:23:16,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:23:16,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:23:01" (1/3) ... [2018-10-23 22:23:16,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f84fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:16, skipping insertion in model container [2018-10-23 22:23:16,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:23:03" (2/3) ... [2018-10-23 22:23:16,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f84fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:23:16, skipping insertion in model container [2018-10-23 22:23:16,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:23:16" (3/3) ... [2018-10-23 22:23:16,251 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label48_false-unreach-call.c [2018-10-23 22:23:16,261 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:23:16,276 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:23:16,293 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:23:16,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:23:16,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:23:16,350 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:23:16,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:23:16,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:23:16,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:23:16,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:23:16,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:23:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-23 22:23:16,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-23 22:23:16,405 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:16,406 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:23:16,408 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:16,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:16,413 INFO L82 PathProgramCache]: Analyzing trace with hash 369225451, now seen corresponding path program 1 times [2018-10-23 22:23:16,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:16,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:16,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:16,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:16,474 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:16,820 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:23:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:16,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:16,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:23:16,891 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:16,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:23:16,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:23:16,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:23:16,916 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-23 22:23:26,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:26,797 INFO L93 Difference]: Finished difference Result 3104 states and 5729 transitions. [2018-10-23 22:23:26,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:23:26,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-23 22:23:26,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:26,837 INFO L225 Difference]: With dead ends: 3104 [2018-10-23 22:23:26,837 INFO L226 Difference]: Without dead ends: 1982 [2018-10-23 22:23:26,849 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 [2018-10-23 22:23:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2018-10-23 22:23:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1965. [2018-10-23 22:23:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2018-10-23 22:23:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3515 transitions. [2018-10-23 22:23:27,039 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3515 transitions. Word has length 13 [2018-10-23 22:23:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:27,040 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 3515 transitions. [2018-10-23 22:23:27,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:23:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3515 transitions. [2018-10-23 22:23:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-23 22:23:27,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:27,048 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] [2018-10-23 22:23:27,049 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:27,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:27,049 INFO L82 PathProgramCache]: Analyzing trace with hash 167202350, now seen corresponding path program 1 times [2018-10-23 22:23:27,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:27,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:27,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:27,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:27,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:27,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:27,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:23:27,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:27,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:23:27,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:23:27,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:23:27,439 INFO L87 Difference]: Start difference. First operand 1965 states and 3515 transitions. Second operand 5 states. [2018-10-23 22:23:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:40,863 INFO L93 Difference]: Finished difference Result 5645 states and 10294 transitions. [2018-10-23 22:23:40,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:23:40,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-10-23 22:23:40,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:40,895 INFO L225 Difference]: With dead ends: 5645 [2018-10-23 22:23:40,895 INFO L226 Difference]: Without dead ends: 3686 [2018-10-23 22:23:40,903 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:23:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2018-10-23 22:23:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3654. [2018-10-23 22:23:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2018-10-23 22:23:41,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5960 transitions. [2018-10-23 22:23:41,021 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5960 transitions. Word has length 83 [2018-10-23 22:23:41,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:41,022 INFO L481 AbstractCegarLoop]: Abstraction has 3654 states and 5960 transitions. [2018-10-23 22:23:41,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:23:41,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5960 transitions. [2018-10-23 22:23:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-23 22:23:41,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:41,026 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] [2018-10-23 22:23:41,026 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:41,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash 360362066, now seen corresponding path program 1 times [2018-10-23 22:23:41,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:41,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:41,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:41,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:41,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:41,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:41,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:23:41,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:41,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:23:41,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:23:41,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:23:41,263 INFO L87 Difference]: Start difference. First operand 3654 states and 5960 transitions. Second operand 5 states. [2018-10-23 22:23:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:59,240 INFO L93 Difference]: Finished difference Result 10942 states and 18366 transitions. [2018-10-23 22:23:59,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:23:59,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-10-23 22:23:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:59,292 INFO L225 Difference]: With dead ends: 10942 [2018-10-23 22:23:59,292 INFO L226 Difference]: Without dead ends: 7294 [2018-10-23 22:23:59,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:23:59,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2018-10-23 22:23:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7137. [2018-10-23 22:23:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7137 states. [2018-10-23 22:23:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 10864 transitions. [2018-10-23 22:23:59,507 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 10864 transitions. Word has length 85 [2018-10-23 22:23:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:59,507 INFO L481 AbstractCegarLoop]: Abstraction has 7137 states and 10864 transitions. [2018-10-23 22:23:59,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:23:59,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 10864 transitions. [2018-10-23 22:23:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-23 22:23:59,512 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:59,512 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] [2018-10-23 22:23:59,512 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:59,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:59,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1054871902, now seen corresponding path program 1 times [2018-10-23 22:23:59,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:59,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:59,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:59,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:59,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:59,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:59,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:23:59,684 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:59,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:23:59,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:23:59,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:23:59,687 INFO L87 Difference]: Start difference. First operand 7137 states and 10864 transitions. Second operand 3 states. [2018-10-23 22:24:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:07,225 INFO L93 Difference]: Finished difference Result 20912 states and 33132 transitions. [2018-10-23 22:24:07,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:24:07,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2018-10-23 22:24:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:07,306 INFO L225 Difference]: With dead ends: 20912 [2018-10-23 22:24:07,307 INFO L226 Difference]: Without dead ends: 13781 [2018-10-23 22:24:07,361 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:24:07,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2018-10-23 22:24:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13775. [2018-10-23 22:24:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13775 states. [2018-10-23 22:24:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13775 states to 13775 states and 20149 transitions. [2018-10-23 22:24:07,923 INFO L78 Accepts]: Start accepts. Automaton has 13775 states and 20149 transitions. Word has length 107 [2018-10-23 22:24:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:07,924 INFO L481 AbstractCegarLoop]: Abstraction has 13775 states and 20149 transitions. [2018-10-23 22:24:07,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:24:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 13775 states and 20149 transitions. [2018-10-23 22:24:07,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-23 22:24:07,940 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:07,940 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:24:07,940 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:07,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1605641714, now seen corresponding path program 1 times [2018-10-23 22:24:07,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:07,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:07,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:07,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:07,949 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:08,270 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:24:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 12 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 22:24:08,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:24:08,601 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:24:08,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-10-23 22:24:08,604 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2631], [2633], [2636], [2644], [2652], [2660], [2668], [2676], [2684], [2692], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3202], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3273], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-23 22:24:08,671 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:24:08,671 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:24:14,329 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:24:14,331 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-23 22:24:14,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:14,339 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:24:18,247 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 71% of their original sizes. [2018-10-23 22:24:18,248 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:24:20,042 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:24:20,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:24:20,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-23 22:24:20,044 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:24:20,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-23 22:24:20,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-23 22:24:20,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-23 22:24:20,045 INFO L87 Difference]: Start difference. First operand 13775 states and 20149 transitions. Second operand 11 states. [2018-10-23 22:24:55,500 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-23 22:26:41,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 22:26:41,775 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:26:41,781 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:26:41,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:26:41 BoogieIcfgContainer [2018-10-23 22:26:41,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:26:41,783 INFO L168 Benchmark]: Toolchain (without parser) took 220391.76 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,784 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:26:41,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2384.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 577.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 841.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,786 INFO L168 Benchmark]: Boogie Preprocessor took 319.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,787 INFO L168 Benchmark]: RCFGBuilder took 11567.20 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 177.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.5 MB). Peak memory consumption was 657.0 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,788 INFO L168 Benchmark]: TraceAbstraction took 205537.55 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -365.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-23 22:26:41,794 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2384.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 577.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 841.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 319.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11567.20 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 177.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.5 MB). Peak memory consumption was 657.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205537.55 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -365.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (13775states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (5403 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 205.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 190.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2433 SDtfs, 10690 SDslu, 1646 SDs, 0 SdLazy, 15865 SolverSat, 4619 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 141.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 233 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13775occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9952018278750951 AbsIntWeakeningRatio, 0.13366336633663367 AbsIntAvgWeakeningVarsNumRemoved, 52.53465346534654 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 212 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 209150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 35/117 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown